Supposing a clock takes 7 seconds to strike 7. How mlong will it take to strike 10?
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A 4" cube is painted in all its faces and then it is cut down into 1" blocks. How many 1" blocks are there even without a single face being painted?
Mahesh and Ramesh are questioners. The time taken by Mahesh and make a question is double of that taken by Ramesh. If Mahesh made 3/2 questions less each minute and Ramesh made 3 questions less each minute, to make m questions, the time taken by Ramesh would be 2n minutes less than that taken by Mahesh. If Ramesh takes n minutes to make m questions, find the number of questions that Ramesh can make in a minute?
the sum of the present ages of a father and his son is 60 years. Six years ago, father's age was five times the age of the son. After 6 years, son's age will be?
Gaurav buys milk at Rs. 60 per litre, adds water to it and then sells it at Rs. 75 per litre. What should be the ratio of milk to water to get a profit of 37.5%?
Complete the series. 3, 8, --, 24, --, 48, 63
In which year will the 21st century begin?
02: 1/3 of girls , 1/2 of boys go to canteen .What factor and total number of classmates go to canteen?
if the height of the triangle decreases by 40% and the breadth increases by 40%.then the effect on the area is
2.3.4.15.12 3.4.5.28.20 4.5.6.45.30 5.6.7.66.42 6.7.8.??.56
window was introduse in
The productivity of a group of workers is given by the function P(N) = 4000 vN, where N is the total strength. Find the percentage change in productivity if the strength of the group is increased by 1%. (a) 0.5% (b) 0.25% (c) 0.75% (d) 1% (e) 2%