Question
Find how many cubes of side 1 cm each can be made by
melting a cuboid with dimensions 20cm × 40cm × 5cm?Solution
Volume of cuboid = 20 x 40 x 5 ; Volume of cube = 1 x 1 x 1 , Hence number of cubes = volume of cuboid/volume of cube = (20 x 40 x 5)/(1 x 1 x 1) = 4000
The current ages of 'Pankaj' and 'Ranjan' are in the ratio of 2:5. If Ranjan's age 13 years from now will be six times Pankaj's age 6 years prior to now...
The birth year of three cousins are consecutive. The present age of the eldest cousin is 12% more than the present age of the youngest cousin. What is t...
Three years ago, the ratio of ages of P, Q, and R was 4:3:5. Present age of S is 40 years, who is 5 years older than R. Find the age of P five years fro...
The present ages of a father and his son are such that 10 years ago, the father was 3 times as old as his son. Eight years from now, the father will be ...
The sum of ages of P and Q is 15 years more than the sum of ages of Q and R. How many years younger is R as compared to P?
The sum of the present ages of a father and his daughter is 80 years. Eight years ago, the father’s age was seven times the age of his daughter. Eight...
- At a party, the present ages of Aman and Qureshi are in the ratio of 2:3. Additionally, Raju is 6 years younger than Aman. Eight years ago, Raju's age was ...
- 5 years from now, the ratio of ages of Asha and Kiran will be 3:4 respectively. The total of their current ages is 95 years. What is the difference in thei...
The ratio of age of ‘B’ after 6 years from now and age of ‘C’ 8 years ago from now is 7:4, respectively. The present age of ‘C’ is 30% of th...
The ratio of present age of A to that of B is 6:5 and the ratio of present age of A to that of C is 6:8. The average present age of A, B and C is 19 yea...