If ÷ mean ×, × menas +, + means - and - means ÷, find the value of 28 \times3+12-4 \div 10

RRB Group D 3-Oct-2018 Shift 3 Solved Paper

Question : 24 of 100

Marks: +1, -0

If ÷ mean ×, × menas +, + means

-

and

-

means ÷, find the value of

28 ×3+12-4 ÷ 10

Solution:

28 ×3+12-4 ÷ 10

After changing sign, we get,
28 + 3 - 12 ÷ 4 × 10

28 + 3 -12/4 ×10

31 -30=1

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