Question
Train 'R' starts from Lucknow to Kanpur at 5:00 a.m. Train
'S' starts from Kanpur to Lucknow at 7:00 a.m., traveling at 50 km/h. They cross each other at 12:00 noon. The distance between the cities is 550 km. Find the speed of train 'R'.Solution
ATQ,
Let the speed of train 'R' be 'x' km/h
Distance covered alone = 2 × x = 2x
Time together = 5 hours
ATQ;
5 × (50 + x) = 550 - 2x
Or, 250 + 5x = 550 - 2x
Or, 300 = 7x
So, x = 42.86
So, speed of train 'R' = 42.86 km/h
Find the digit at unit place of 12349.
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.)
What will be the approximate value of the following questions.
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exactvalue.)<...
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.)...
? = 16.08 + 13.99 × 25.07
1219.98 ÷ 30.48 × 15.12 = ? × 2.16
?% of 309.99 = 40.01% of 249.99 + 295.98% of 49.99
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.)...
