Question
Tap A can fill a tank in 10 hours. Tap B can fill 12.5%
part of the same tank in 2 hours, whereas Tap C can alone empty a tank in ‘x’ hours. 3/7 part of the tank is filled in 6 hours, when all three taps are opened together. How much time (in hours) will Tap A and C together will take to fill 25% part of the tank?Solution
Tap A alone can fill the tank in = 10 hours. Tap B alone can fill the tank in = (8/1) × 2 = 16 hours Tap C alone can empty the tank in = x hours (A + B +C) together can fill the tank in = 6 × (7/3) = 14 Taking LCM of 10, 16 and 14 = 560 Efficiency of Tap A = 56 Efficiency of Tap B = 35 Efficiency of Taps (A + B +C) = 40 Efficiency of Taps (A +C) = 40 – 35 = 5 Tap A and C together take to fill 25% part of the tank in, => (25/100) × (560/5) = 28 hours
If all the digits of the number 464835795456 are decreased by 2, after that all the digits are arranged in descending order from the left end, then what...
- How many pairs of letters are there in the word ‘INNOVATION’ which maintain the same positional gap as in the English alphabetical series (both forward...
If a word ‘HELICOPTER’ is divided into two parts containing equal number of letters without changing the order of the letters, the letters of the fi...
In the given number 857354216, one is added to all the even digits and one is subtracted from all the odd digits, then what is the sum of all the digit...
If the digits in the number 40723819 are arranged in descending order from left to right, what will be the resultant if the third digit from your left i...
How many pairs of letters are there in the word “POWDER” each of which has as many letters between them in the word as in alphabetical serie...
The position of how many alphabets will remain unchanged if each of the alphabets in the word ‘MISCHIEF’ is arranged in alphabetical order from left...
How many pairs of letters are there in the word ‘OLIGOPOLY’ which has as many letters between them (both forward and backward direction) in the word...
- If in the word "PENCILS", all the consonants are changed to 3rd preceding and all the vowels are changed to immediately preceding letter as per the English...
In the below series one blank is given, fill the blank with the correct option.
CMN DOP EQR ___ G...
Relevant for Exams:
