## A train starts from a place S at 10.00 am and arrives at another phase T at 2.30 pm on the same day. If the speed of the train is 40m/s then what will be the distance covered by the train?

Options A) 706 B) 648 C) 726 D) 616 Solution Train starts from place S, 10 Am Stops at T at 2.30 Am Total time taken from 10Am to 2.30 pm is 4.1/2 hrs Speed of the train is 40 m/s First should convert m/s to km/r, by multiply with 18/5 40× 18/5 = 144 … Read more

## To complete a wall, X takes 50 % more time than Y. If together they complete the wall in 15 days, then how much time will X alone takes to complete it

options A) 42.5 Days B) 40 Days C) 36.5 Days D) 37.5 Days Detailed solution Lets take it as 100, then X = 150 Y = 100 X/Y = 150/100 = 3/2 Efficiency of work are in above ratio. ( Efficiency is always inversely proportion to time) Total work = 15 days ( 2+3) unit … Read more

## What is the sum of two digit number which are divisible by 9

Options A) 535 B) 565 C) 475 D) 585 Solution Easy method The two digit natural numbers which are divisible by 9 are It’s two digit number which means cannot be less then 10 and cannot be more then 100 18, 27, 36, 45, 54, 63, 72, 81, 90, 99 Thus their sum = 18 … Read more