A. 120
B. 200
C. 180
D. 150
E. None of these
Explanation:
Let the number be x.
30% of x = 30/100 * x = 3x/10
20% of x = 20/100 * x = x/5 = 2x/10.
Given that 3x/10 – 2x/10 = 18 => x = 180.
Required number is 180.
Related Mcqs:
- If y exceeds x by 20%, then x is less than y by_______?
A. 16%
B. 16 1/3 %
C. 16 2/3 %
D. 16 3/5 % - If y exceeds x by 25%, then x is less than y by__________?
A. 16%
B. 16 1/3 %
C. 20%
D. 16 3/5 % - In an election between two candidates A and B, the number of valid votes received by A exceeds those received by B by 15% of the total number of votes polled. If 20% of the votes polled were invalid and a total of 8720 votes were polled, then how many valid votes did B get?
A. 2160
B. 2420
C. 2834
D. 3150
E. None of these - The number which exceeds 16% of it by 42 is________?
A. 50
B. 52
C. 58
D. 60 - The sum of the squares of two consecutive positive integers exceeds their product by 91. Find the integers?
A. 9, 10
B. 10, 11
C. 11, 12
D. 12, 13 - The length and breadth of a square are increased by 40% and 30% respectively. The area of the resulting rectangle exceeds the area of the square by:________?
A. 42%
B. 62%
C. 82%
D. none of these - a number exceeds another number by 5.the sum of the numbers is 19. find the smaller number ?
A. 5
B. 6
C. 7
D. 12 - The tax on a commodity is diminished by 20% but its consumption is increased by 10%. Find the decrease percent in the revenue derived from it?
A. 20%
B. 18%
C. 15%
D. 12% - Find the 37.5% of 976 =_______?
A. 324
B. 388
C. 366
D. 372
E. None of these - Two-fifth of one-third of three-seventh of a number is 15. What is 40% of that number?
A. 72
B. 84
C. 136
D. 140
E. None of these