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Number System

Number System
The product of two successive numbers is 4556. Which of the following is the larger of the two numbers?

68
67
63
78

ANSWER DOWNLOAD EXAMIANS APP

Number System
A basket contains 5 blue, 4 green and 3 red ball. If three balls are picked at random, what is the probability that at least one is red ?

31/58
32/51
37/52
34/55

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Probability of having no red ball is9C3 / 12C3 = 21/55Probability of having at least one red ball is 1 - 21/55 = 34/55

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

60
None of these
80
40

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

The world LEASE consists of 5 letters in which E comes twice ∴ 51/21 = 5x4x3x2x1/2x1 = 60

Number System
732.96 + 405.38 - 604.08 - 105.44 + 222.86 = ?

641.68
631.68
621.68
651.68

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 1361.20 - 709.52 = 651.68

Number System
What is 50% of 40% of Rs. 3,450?

640
670
690
630

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

40% * 3450 = 1380then, 50 % * 1380 = 690

Number System
(1024—263—233)÷(986—764— 156) =?

10
8
6
None of these

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

8

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