mathematical operation Model Questions & Answers, Practice Test for ssc mts paper 1 2023

Answer: (b)

A → ×, B → -, C → +, D → ÷ then,

7 B 17 C 88 D 11 A 6

= 7 – 17 + 88 ÷ 11 × 6

= 7 – 17 + 8 × 6

= 7 – 17 + 48

= 55 – 17 = 38

Answer: (c)

If – → ÷, × → +, + → ×, ÷ → –

Then, 40 – 10 + 5 ÷ 4 × 5 = 21

After changing sign,

40 ÷ 10 × 5 – 4 + 5 = 21

4 × 5 – 4 + 5 = 21

20 – 4 + 5 = 21

25 – 4 = 21

21 = 21

Answer: (c)

+ → -, × → ÷, ÷ →+, - → ×

104 × 13 + 9 – 5 ÷ 6

104 ÷ 13 – 9 × 5 + 6

= 8 – 9 × 5 + 6

= 8 – 45 + 6

= 14 – 45 = – 31

Answer: (b)

8 × 6 + 4 = 52

interchanges × → + and 8 → 4

4 + 6 × 8 = 52

4 + 48 = 52

52 = 52

Finally, changes are × and +, 8 and 4.

Answer: (a)

S → ×, V → - , M → +, L → ÷

36 L 9 S 8 V 7 M 5

= 36 ÷ 9 × 8 – 7 + 5

= 4 × 8 – 7 + 5

= 32 – 7 + 5 = 37 – 7 = 30