ibps-rrb-os1 2017 · Question 60 of 74

Find the average number of students who were failed in Economics in year 2002 and year 2003 together?

Average

A1435
B1565Correct
C1720
D1590
ENone of these

Answer: B. 1565

Explanation

No. of students failed in Economics in year 2002 = (100−45) 100 × 3800 = 2090 No. of students failed in Economics in year 2003 = (100−60) 100 × 2600 = 1040 Required average = 2090+1040 2 = 1565 Short trick = 55×38+40×26 2 = 1565

Source: IBPS RRB PO Prelims 2017 Memory Based Paper (Adda247) · memory-based

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