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Number System

Number System
Find the number, when 15 is subtracted from 7 times the number, the result is 10 more than twice of the number

15
4
7.5
5

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be x.7x -15 = 2x + 10 => 5x = 25 => x = 5

Number System
124, 235, 447, 760, 1174, ?

1589
1489
1389
1689

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

+111, +212, +313, +414

Number System
Find the average of the following set of scores 450, 1050, 12, 390, 143, 286, 550, 999

480
490
485
495

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Required average score                    = (450 + 1050 + 12 + 390 + 143 + 286 + 550 + 999) / 8                   = 3880 / 8                   = 485

Number System
In how many different ways can the letters of the word FORMULATE be arranged ?

362880
392880
382880
372880

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

No. of letters = 9!                       = 9*8*7*6*5*4*3*2*1                       = 362880

Number System
(4 86%of 6500) ÷ 36 =?

777.5
977.5
877.5
677.5

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

877.5

Number System
1260 x 1.45 - 888 x 1.75 = ?

367
295
256
273

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 1260 x 1.45 - 888 x 1.75= 1827 - 1554 = 273

MORE MCQ ON Number System

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