Question
A train passes an electrical pole in 15 seconds and
passes a platform 480 m long in 60 seconds. Find the length of the train.Solution
Let the length of the train be ‘x’ meter. ∴ x/15 = (x + 480)/60 ⇒ 60x = 15x + 7200 ⇒ 45x = 7200 ⇒ x = 160 m
80, ?, 240, 80, 20, 4Â
251, 130, 274, ?, 301, 76Â
What will come in place of the question mark (?) in the following series?
45, 68, 114, 183, 275, ?
What value should come in the place of (?) in the following number series?
500, 789, 428, ?, 340, 965
Which of the following numbers will replace the question mark (?) in the given series?
17, 30, 44, 59, 75, ?
What will come in place of (?) question mark in the given number series.
52, 61, 79, 106, 142, ?Â
In each of the following number series, one term is missing. Find the missing term.
7, 14, 28, 56, 112, ?
- What will come in place of the question mark (?) in the following series?
20, 32, 50, 74, 104, ? What will come in place of the question mark (?) in the following series?
15, 26, 39, 56, ?, 98
Find the missing number, in the given number series.
42, 52, 72, 112, 192, ?
