10 second questions

bobbym · 2011-10-20 22:29:27

Hi ganesh;

Jai Ganesh · 2011-10-22 00:19:57

Hi bobbym,

The solutions #3326 and #3327 are perfect. Good work!

#3328. A square is converted into a rectangle by increasing the length of the square by 15% and decreasing its breadth by 15%. What is the ratio of the area of the rectangle to that of a square?

#3329. If a person pays $60 every month for 5 years, at the rate of 10% simple interest per annum, what is the actual amount of interest he is to get?

bobbym · 2011-10-22 01:34:16

Hi ganesh;

Jai Ganesh · 2011-10-23 00:43:20

Hi bobbym,

The solution #3328 is perfect. Good work!

The

#3330. A's age is 1/4 of B's and B's age is 1/3 of C's. If their total age is 85 years, what is B's age?

#3331. What is the least number, which leaves the remainder 45, when divided by 63 or 105 or 180?

bobbym · 2011-10-23 00:59:26

Hi;

Jai Ganesh · 2011-10-23 23:41:49

Hi bobbym,

The solution #3330 is correct. Good work!

The solution #3331 I get is

.

#3332. What is the length of the longest pole that can be placed in a room of dimensions 8 cm x 6 cm x 5 cm?

#3333. In an examination, 70% of the students pass in Mathematics, 60% pass in Physics, and 40% pass in both. What percentage of students fail in both Mathematics and Physics?

bobbym · 2011-10-24 00:32:04

Hi;

Jai Ganesh · 2011-10-24 23:41:56

Hi bobbym,

The solutions #3332 and #3333 are perfect. Good work!

#3334. A person travels a fixed distance from town A to town B at the speed of 45 km/hour and travels back from B to A at the speed of 30 km/hour. What is his average speed in the entire journey?

#3335. Three persons A, B, and C can complete a job in 15 days. They work together for 5 days and then A leaves the work. B and C completed the job in 15 days more than A alone can complete the job in how many days?

bobbym · 2011-10-25 00:05:24

Hi;

Jai Ganesh · 2011-10-25 23:24:13

Hi bobbym,

The solution #3334 is correct. Good work!

The

#3336. The average weight of 150 students in a class is 60 kg. The average weight of the boys in the class is 70 kg and that of girls is 55 kg. Find the number of boys and girls.

#3337. A rectangular garden is 82 meters by 68 meters. Ram walks round at the rate of 2.5 km/hour. How much time would he take to make 5 rounds?

bobbym · 2011-10-25 23:58:16

Hi;

Thanks for the solution to #3335!

Jai Ganesh · 2011-10-26 23:56:03

Hi bobbym,

The solutions #3336 and #3337 are correct. Well done!

#3338. The area of sector of a circle of radius 14 cm is 154 cm[sup]2[/sup]. Find its perimeter.
(Use

)

#3339. A man had $4560. He spent 20% of his money and then he spent $82 and x% of the remainder. If $3031.10 was left with him, that is the value of x?

bobbym · 2011-10-27 00:04:37

Hi;

Jai Ganesh · 2011-10-27 00:57:57

Hi bobbym,

The solution #3339 is perfect. Good work!

#3340. If 65 % of x is 52, what is the value of x?

bobbym · 2011-10-27 01:18:09

Hi ganesh;

For #3338 I did not know that you include the two radii. I assumed perimeter was the same as arc length.

Jai Ganesh · 2011-10-27 23:37:05

Hi bobbym,

The solution #3340 is correct. Well done!

#3341. In a two-digit number, it is known that its unit digit exceeds its tens digit by 2 and that the product of the desired number and the sum of its digits is equal to 144, then find the number.

#3342. A reduction of 10 % in the price of sugar enables a householder to ontain 3 kg more for $225. What is the reduced per kg of sugar?

bobbym · 2011-10-27 23:56:55

Hi ganesh;

Jai Ganesh · 2011-10-28 23:10:04

Hi bobbym,

The solutions #3341 and #3342 are correct. Excellent!

#3343. Three numbers are in the ratio 1:2:3 and their product is 20250. Find the numbers.

#3344. The area of a circle is 220 square centimeters. What is the area of a square inscribed in this circle?

(Use

)

bobbym · 2011-10-28 23:19:55

Hi ganesh;

Jai Ganesh · 2011-10-29 16:37:51

Hi bobbym,

The solutions #3343 and #3344 are correct. Excellent!

(The solution #3344 I get is 140 square centimeters)

#3345. The area of a circle inscrbed in an equilateral triangle is

square centimeters. Find the perimeter of the triangle.

#3346. Let m and n be two whole numbers. If m[sup]n[/sup] = 25, what is the value of n[sup]m[/sup]?

bobbym · 2011-10-29 22:15:46

Hi ganesh;

Jai Ganesh · 2011-10-30 01:36:01

Hi bobbym,

The solutions #3345 and #3346 are correct. Smart work!

#3347. The circumference of a circle is 100 centimeters. What is the side of a square inscribed in the circle?

bobbym · 2011-10-30 04:20:56

Hi;

Jai Ganesh · 2011-10-31 02:28:42

Hi bobbym,

The solution #3347 is correct. Excellent!

#3348. If a - b = 10 and ab = 50, what is

?

#3349.

Arthur Bon Zavi · 2011-10-31 03:06:49

ganesh wrote:

Hi bobbym,
The solution #3347 is correct. Excellent!
#3348. If a - b = 10 and ab = 50, what is
?
#3349.

Last edited by Arthur Bon Zavi (2011-10-31 03:07:12)

Math Is Fun Forum

#3251 2011-10-20 22:29:27

Re: 10 second questions

#3252 2011-10-22 00:19:57

Re: 10 second questions

#3253 2011-10-22 01:34:16

Re: 10 second questions

#3254 2011-10-23 00:43:20

Re: 10 second questions

#3255 2011-10-23 00:59:26

Re: 10 second questions

#3256 2011-10-23 23:41:49

Re: 10 second questions

#3257 2011-10-24 00:32:04

Re: 10 second questions

#3258 2011-10-24 23:41:56

Re: 10 second questions

#3259 2011-10-25 00:05:24

Re: 10 second questions

#3260 2011-10-25 23:24:13

Re: 10 second questions

#3261 2011-10-25 23:58:16

Re: 10 second questions

#3262 2011-10-26 23:56:03

Re: 10 second questions

#3263 2011-10-27 00:04:37

Re: 10 second questions

#3264 2011-10-27 00:57:57

Re: 10 second questions

#3265 2011-10-27 01:18:09

Re: 10 second questions

#3266 2011-10-27 23:37:05

Re: 10 second questions

#3267 2011-10-27 23:56:55

Re: 10 second questions

#3268 2011-10-28 23:10:04

Re: 10 second questions

#3269 2011-10-28 23:19:55

Re: 10 second questions

#3270 2011-10-29 16:37:51

Re: 10 second questions

#3271 2011-10-29 22:15:46

Re: 10 second questions

#3272 2011-10-30 01:36:01

Re: 10 second questions

#3273 2011-10-30 04:20:56

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#3274 2011-10-31 02:28:42

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