Question
A boat can cover 187 km in downstream in 11 hours and
180 km in upstream in 18 hours. Find the speed of boat in still waterSolution
Downstream speed of the boat = 187/11 = 17 km/hr Upstream speed of the boat = 180/18 = 10 km/hr Speed of boat in still water = (17 + 10)/2 = 13.5 km/hr
Find remainder when 7¹⁰⁰ is divided by 100.
A = (7/3) × B and C = (1/14) × A. If (A + B + C) = 360, then determine the value of (10C – B).
Two numbers differ by 8, and their product is 240. Find the numbers.
Find the sum of all the numbers between 100 and 800, which are divisible by 6, 8 and 10.
A waiter income consist of his salary and tips. During one week his tips were 4/5 of his salary. What portion of his income came from tips?
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If (3 - 4/(1+ 2/(3+ 1/(2+1/3))))th part of a journey takes 45 minutes, then to complete 4/5th of that journey, it will take:
28% of a certain number is added to 82% of the same number, resulting in 125% of 484. If 150 is subtracted from this number, what is 35% of the resultin...
Aman is forming pairs of two natural numbers, A and B, such that their product equals 350. He wants to determine how many such pairs exist where A and B...
