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Number System

Number System
(444 x 44 x 4) ÷ 40 ?

1853.6
1953.6
2053.6
2153.6

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 444 x 44 x 4/40 = 1953.6

Number System
4550 ÷ 25% of ? = 130

140
135
130
125

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

4550 ÷ ? x 25/100 = 130= 4550 ÷ ?/4 = 130= 4550 x 4/? = 130= ? x 130 = 4550 x 4= ? = 4550 x 4/130 = 140

Number System
I. 3x2-14x + 8 = 0 II. 2y2 - 1 7 y + 36 = 0

if x > y
if x < y
if x <= y
if x >= y

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

l. 3x2 - 12x - 2x + 8 = 0or 3x(x - 4) -2 (x -4) = 0∴ x = 4, 2/3ll. 2y2 - 8y - 9y + 36 = 0or 2y (y - 4) -9 (y - 4) = 0or (2y - 9) (y - 4) = 0∴ y = 4, 9/2

Number System
What should come in place of question mark (?) in the following number series ? 7, 176, 480, 1058, 2188, 4426, ?

8881
8884
8882
8888

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Series is (No. + 9²) x 2, (+8²) x 2, (+7²) x 2, (+6²) x 2.......

Number System
Which one of the following numbers is exactly divisible by 11?

245642
315624
415624
235641

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

(4 + 5 + 2) - (1 + 6 + 3) = 1, not divisible by 11.(2 + 6 + 4) - (4 + 5 + 2) = 1, not divisible by 11.(4 + 6 + 1) - (2 + 5 + 3) = 1, not divisible by 11.(4 + 6 + 1) - (2 + 5 + 4) = 0. So, 415624 is divisible by 11.

Number System
2536+4851—?=3450+313

5243
3624
4567
6784

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

3624

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