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UPSC CSAT • TOPIC PRACTICE
Mathematical Operations
Practice all 7 questionsclassified under Mathematical Operations.
If P = +, Q = −, R = ×, S = ÷, then insert the proper notations between the successive numbers in the equation 60_15_3_20_4 = 20:
UPSC CSAT marking
Correct answer: +2.5 marks. Incorrect answer: −1/3 of 2.5 marks (−0.8333 marks). Skipped questions receive 0 marks.