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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 31,165

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#4745. A bag contains 7 blue balls and 5 yellow balls. If two balls are selected at random, what is the probability of none is yellow?

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 31,165

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#4746. A die is thrown twice. What is the probability of getting a sum of 7 from both the throws?

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 31,165

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#4747. In a box, there are 8 red, 7 blue, and 6 green balls. One balls is picked up randomly. What is the probability of it being neither blue nor green?

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 31,165

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#4748. A bag contains 4 red, 5 yellow, and 6 pink balls. Two balls are drawn at random. What is the probability of none of the balls being drawn are yellow?

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 31,165

Hi,

#4749. A bag contains 5 red, 7 yellow, and 3 pink balls. If two balls are drawn at random from the bag, one after the other, what is the probability of the first ball being red, and the second ball being yellow?

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
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#4750. A box contains 14 eggs out of which 8 are rotten. Two eggs are chosen at random. What is the probability of none of the eggs being rotten?

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 31,165

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#4751. In a bag, there are 6 red balls, 4 green balls, and 8 yellow balls. What is the probability of drawing one ball which is neither green nor yellow?

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
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#4752. A bag contains 13 white and 7 black balls. Two balls are drawn at random. What is the probability of they being of the same color?

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
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#4753. A bag contains 3 red balls, 5 yellow balls, and 7 pink balls. If one ball is drawn at random from the bag, what is the probability of it being either pink or red?

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
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#4754. A bag contains 7 blue balls and 5 yellow balls. If two balls are selected at random, what is the probability of neither of them being yellow?

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
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#4755. How many terms are there in an Arithmetic Progression 10, 12, 14, 16, ......., 80?

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
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#4756. In an Arithmetic Progression 1, 3, 5, ..., which term of this Arithmetic Progression is 155?

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
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#4757. Find the 15th term of the sequence : 20, 15, 10, ....

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
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#4758. Find the sum of last 5 terms of the series 3, 8, 13, ....., 103.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
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#4759. Find the value of the expression 1 - 6 + 3 - 10 + 5 - 14 + 7 - 18 + .... up to 100 terms.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
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#4760. Find the value of 50 terms of

.Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
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#4761. A number 27 is divided into three parts which are in Arithmetic Progression and the sum of their squares is 261. Find the smallest one.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
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#4762. A sum of money kept in a savings bank account amount to $1240 in 4 years and $1600 in 10 years. Find the sum (simple interest).

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
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#4763. Robert receives $600 in the first week and $30 more each week than the preceding. What does he get in the 20th week?

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
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#4764. Robert receives $600 in the first week and $30 more each week than the preceding. What is the total amount he has received by the end of the 20th week?

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
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#4765. Find the least value of n for which the sum of the series 5 + 8 + 11 + ... up to n terms is not less than 670.

(a) 20

(b) 21

(c) 22

(d) 23.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
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#4766. How many natural numbers between 100 and 400 are there which are multiples of 9?

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
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.

#4767. Find the number of terms in the series 15 + 13 + 11 + 9 + 7 + 5+ ...... such that the sum is 63. If there are two solutions, give both.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
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#4768. Find the least value of n for which the sum of the series 3 + 7 + 11 + 15 + 19 + ... is greater than 820.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
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#4769. The average of 50 numbers is 38. If two numbers viz. 45 and 55 are discarded, find the average of the remaining numbers.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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