DXC Logical Mathematical Order Quiz 4

Ans: 40
Expl:
55 + 11 – 4 × 25 ÷ 5 = ?
⇒ ? = 55 ÷ 11 × 4 + 25 – 5
⇒ ? = 5 × 4 + 25 – 5
⇒ ? = 20 + 25 – 5
⇒ ? = 45 – 5
⇒ ? = 40.

Ans: ÷ and –
Expl:

(64 – 8) × 67 ÷ 5 + 10 = 61
⇒ (64 ÷ 8) × 7 – 5 + 10 = 61
⇒ 8 × 7 – 5 + 10 = 61
⇒ 56 – 5 + 10 = 61
⇒ 66 – 5 = 61

Ans:
Expl:
From the first option, we get:
35 × 2 – 6 = 8 × 8 + 0
⇒ 70 – 6 = 44 + 0
⇒ 64 = 64.

Ans: 129
Expl:
225 – 25 ÷ 6 + 30 × 4 + 15 = ?
⇒ ? = 225 ÷ 25 + 6 × 30 – 4 × 15
⇒ ? = 9 + 180 – 60
⇒ ? = 189 - 60 = 129

Ans: × ÷ – =
Expl:
From the second option, we get:
40 × 12 ÷ 4 – 45 = 75
⇒ 40 × 3 – 45 = 75
⇒ 120 – 45 = 75

Ans: 89
Expl:
85 + 126 ÷ 7 - 14
⇒ 85 + 18 - 14
⇒ 103 - 14 = 89

Ans. 40
Sol. Using the correct symbols, we have:
Given expression
52 K 4 Q 4 J 9 T 9 = ?
= 52 ÷ 4 + 4 × 9 – 9
= 13 + 36 – 9 = 40

Ans: -3
Expl:
(5 – 17 ÷ 5) × 9 + 13 = ?
(5 × 17 + 5) ÷ 9 - 13
⇒ 90 ÷ 9 - 13
⇒ 10 - 13
⇒ -3.

Ans: 120
Expl: Given, 143 + 11 - 9 x 25 ÷ 12
Replacing the proper signs in the given expression,
143 ÷ 11 x 9 + 25 - 12
Using BODMAS rule,
13 x 9 + 25 - 12
= 117 + 15 - 12
= 132 - 12 = 120

Answer : - and /
Explanation:
On interchanging - and /, we get the equation as
25 + 13 x (2 /26) - 23 = 3
25 + 13 x (1/13) - 23 = 3
25 + 1 - 23 = 23
26 - 23 = 23, 3 = 3