The length of the sides of a triangle are in integers and its area
>is also an integer. One side is 21 cm and the perimeter is 48 cm,
>then the length of the shortest side is :
Two candles have different lengths and thickness. The shorter lasts 11 hours and the longer 7 hours,when both are lit simultaneously. If after 3 hours of their being lit together at the same time, both have the same length, then what is the ratio of their original lengths?
If S1 and S2 be the whole surface of a sphere and the curved surface of the circumscribed cylinder, then S1 is equal to
a)S2, b)2S2 c)(1/2)S2 d)(2/3)S2
A number of friends decided to go on a picnic and planned to spend Rs.960 on food. Four of them, however, did not turn up. As a consequence, the remaining ones had to contribute Rs.40 each extra. The number of those who attended the picnic was:
If Thursday was the day before yesterday five days ago, what is the least number of days ago when Sunday was three days before the day after tomorrow. Kindly explain in detail how to approach the problem.