You are right, kylekatarn, Very well done!

113. Complete the series...
1, 3, 10, 21, 64, 129, _____, 777.

114. It takes 2 minutes to boil a single egg. How many minutes will it take to boil 5 eggs together?

115. If the fifth of the month falls two days after Monday, what day of the week would precede the nineteenth of the month?

116. If 5 boys write 5 pages in 5 minutes, in how many minutes can one boy write one page?

117. An aeroplane flies twice as fast as a Superfast train runs. The train covers 60 miles in 90 minutes. What distance would the aeroplane cover in 20 minutes?

118. A lady is five years younger than her husband. The husband is 5 times as old as their daughter. If the daughter was 5 years old exactly three years ago, what is the lady's present age?

OMG! kylekatarn, The problem does not require such an analysis, and your answer isn't correct!

I shall post the solution after some time! As a matter of fact, the problem is far more simpler, but I understand solving the 'Complete the series' is never easy!

119. Divide a sum of $832 between A and B in the ratio 1/3:1/5.

120. I paid $27.20 as Sales Tax on the sale of a wrist-watch worth $340. What is the rate of the Sales Tax?

Solution to 113:- Complete the series...
1, 3, 10, 21, 64, 129, _____, 777.

Lets name the first term as t1, second as t2, the third as t3 and so on.
t1=1
t2=(t1x2)+1=3
t3=(t2x3)+1=10
t4=(t3x2)+1=21
t5=(t4x3)+1=64
t6=(t5x2)+1=129
t7=(t6x3)+1=(129x3)+1=388
t8=(t7x2)+1=(388x2)+1=777

               

121. Find the sum of the first 200 terms in the series
1, 5, 9, 13, ................

122. What is the value of
11³+12³+13³+14³+...................19³+20³?

123. What is the value of

Yes, kylekatarn, I agree with you.
I remember having read an SMS puzzle (pun intended),
which says, if 1=5, 2=25, 3=125, and 4=625, then  5=?
Instinctively, the credulous reader calculates what 625x5 is,
but the answer is 5=1, because that was what we started with

124. A person travels 2 miles from the starting poing, turns left and travels 3 miles, then turns left again and travels 6 miles. How far is he from the starting point?

125. 1/3:1/4::20x:?

126. The slant height of a cone is 26 cm and the diameter of the base is 20 cm. What is its vertical height?

127. What is the value of (2 tan30°)/(1+tan²30°) ?

Well done, kylekatarn!

128. How many twin Primes exist between 1 and 100?
Note:- 1 is neither prime nor non-prime; 2 and 3 are not twin-primes.

129. How many years does the farthest planet in the Solar System take to go around the Sun once?

130. How many leap years were there in the twentieth century?

126 :- You are correct, well done, mathsyperson!

130:- 20th century is 1901 AD to 2000 AD. Would you like to change the answer?

Correct, mathsperson! Good work!

131. The sum of double of a natural number and three
times another natural number is less than 24. If the first natural
number is less than or equal to eight, then what is the highest value of the second natural number?

132.  The boys and girls in a school are in the ratio 3 : 7.
25% of the boys and 20% of the girls are scholarship holders.
What per cent of the total students do not get scholarships?

133. Stephen is 7 times as old as his son. 10 years hence,
he would be 3 times as old as his son. What are their present
ages (in years)?

130) This is one of those odd questions. The normal answer would be 27, but then we totally skipped the year 0. That is a year itself. A leap year would start on the year 0. If we followed this rule, there would be 25 in the 20th century...

Correct, Devante`. Well done.

Well done, michi! Excellent!
Welcome to the forum!

Last edited by kylekatarn (2007-02-19 16:35:32)