Question
Two numbers are in the ratio 7:9. If the larger number
is increased by 25 and the smaller number is decreased by 10, then the larger number becomes twice the smaller number. Find the larger number.Solution
ATQ, Let the larger number = 9x The smaller number = 7x (9x + 25)/(7x − 10) = 2/1 9x + 25 = 14x − 20 5x = 45 x = 9 The larger number = 9 × 9 = 81
More No. System Questions
Find the Wrong number in the given number series.
29, 76, 123, 166, 209, 256Find the wrong number in the given number series.
1, 8, 27, 65, 125, 2167, 15, 31, 79, 271, 1221
In each of the following number series, one term is wrong. Find the wrong term.
4, 10, 22, 46, 94, 188
- Find the wrong number in the given number series.
5, 10, 30, 90, 540, 3240 1286, 1061, 865, 696, 560, 431, 331
- Find the wrong number in the given number series.
10, 13, 17, 24, 31, 41 - 1054, 910, 714, 456, 134, -266
- Find the wrong number in the given number series.
7, 11, 20, 45, 94, 194 In each of the following number series, one term is wrong. Find the wrong term.
5, 13, 29, 61, 125, 249, 509
Relevant for Exams:
