Tag: math & puzzles

Of 1,000 dogs, 72% are male. Among the males, 3 out of 5 were over the age 5. How many of the dogs were males age 5 or older?

There are two candles of equal lengths and of different thickness. The thicker one lasts of six hours. The thinner 2 hours less than the thicker one. Ramesh lights the two candles at the same time. When he went to bed he saw the thicker one is twice the length of the thinner one. How long ago did Ramesh light the two candles

A dog takes 4 leaps for every 5 leaps of a hare but 3 leaps of a dog are equal to 4 leaps of the hare. Compare their speeds.

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.How much per cent of the total students do not get scholarships?

If the diameter of a wire is increased by 10%, by how much per cent approximately, will its length be decreased, if the volume remains the same?

Two trains move in the same direction at 50 kmph and 32 kmph respectively. A man in the slower train observes the 15 seconds elapse before the faster train completely passes by him.What is the length (in mts.) of faster train ?

Of 1,000 dogs, 72% are male. Among the males, 3 out of 5 were over the age 5. How many of the dogs were males age 5 or older?

3,10,21,44,65,102,?

1,2,4,8,61,221,244,884,?

3,4,7,11,16,29,47,?