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Mirash Biju from INDIAN SCHOOL SUR, Muscat

Subject :NSO Class : Class 6

If × means - , + means ÷ , - means × and ÷ means + , then 15 - 2 ÷ 900 + 90 × 100 is

A190
B180
C- 90
D- 60

it is -90

Ans 1:

Siddharth Rajpal from Shri ram millennium school , Noida

Class : Class 7

rethish from Veltech, Avadi

Class : Class 3