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Number System

Number System
What should come in place of question mark (?)? 8 : 1 1 : : 72:

99
109
89
79

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let ? = xTherefore 8 : 11 : 72 : xTherefore x = (11 x 72) / 8 = 99

Number System
1827÷ 36 x ?=162.4

1.9
4.3
3.2
2.6

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

3.2

Number System
The digit in unit's place of a three digit number is thrice the digit in ten's place & the digit in hundred's place is two-third of the digit in ten's place. If the sum of three digits of number is 14

215
239
211
221

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the ten's digit be x.∴ Unit's digit = 3xHundered's digit = 2x/3∴ x + 3x + 2x/3 = 14= 3x + 9x + 2x = 14 x 3= 14x = 14 x 3= x = 3∴ Number = 239

Number System
Sum of two numbers is 80. Greater number exceeds by 5 from four times of the smaller. Find the numbers?

60, 20
64, 16
65, 15
62, 18

ANSWER DOWNLOAD EXAMIANS APP

Number System
If 70% of an equal to 40% of b, then ratio between a and b is?

7: 4
7: 11
None
4: 7

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

70 a = 40 ba: b = 4: 7

Number System
Pick the wrong number from the given number series. 3,4,10,33,135,685,4116

33
685
10
135

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

The correct number is 136.3 x 1 + 1 = 44 x 2 + 2 = 1010 x 3 + 3 = 3333 x 4 + 4 = 136136 x 5 + 5 = 685685 x 6 + 6 = 4116

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