Average present ages of A, B and C is 25 years. The ratio of the present ages of B and C is 4:5. After 6 years, the ratio will be B and C is 5:6, then what is the present age of A?

Seema is 8 years elder than his sister and 7 years younger than her brother Raj. When Raj was born, her father’s age was 30 and when Seema’s sister was born his mother’s age was 34. Find the difference between ages of Seema’s father and his mother?

Two successive discounts of 40% and 20%, respectively, on the marked price of an article are equal to single discount of Rs 988. The marked price (in Rs) of the article is:

The area of the triangle whose vertices are given by the coordinates (1, 2), (-4, -3) and (4, 1) is:

Rs. 720 was divided among A, B, C, D, E. The sum received by them was in ascending order and in arithmetic progression. E received Rs. 40 more than A. How much did B receive?

Find the value of x:
2³ × 3⁴ × 1080 ÷ 15 = 6^x

Find the sum of the factors of 3240

Running at a speed of 60 km per hour, a train passed through a 1.5 km long tunnel in two minutes, what is the length of the train?