Question
A goods train leaves a station at a certain time and at
a fixed speed. After 12 hours, an express train leaves the same station and moves in the same direction at a uniform speed of 171 km/hr, this train catches up the goods train in 7 hours. Find the speed of the goods train.Solution
Let the speed of the goods train be ‘s’ km/hr Distance covered by goods train in 19 hrs = s x 19 km Distance covered by express train in 7 hrs = 7 x 171 km Distance covered by goods train in 19 hrs = Distance covered by express train in 7 hrs So, 19s = 7 × 171 ⇒ 19s = 1197 ⇒ s = 1197/19 = 63 So, Speed of goods train = 63 km/hr
√323.89 × (3.20) ÷ 9.02 =?
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
23.98% of 624.99 = 19.98% of ? + 14.98% of 639.99
Direction: Please solve the following expression and choose the closest option
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
12, 16, ?, 36, 52, 72
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
(6859.01)1/3 × 10.11 × 14.47 ÷ 20.32 = ? + 45.022
33.33% of 809.891 + 66.66% of 212.91 = ?
