# ICSE Class 7 Answered

**Q7, 3rd. Part**

Asked by manuyadav.sis | 09 Aug, 2019, 06:39: PM

Expert Answer

now +3 for correct and -2 for wrong answers

16 questions attempted

let

a be the number of right ones

so wrong ones = 16 - a

total mark scored=18

so,

18 = (3)a + (-2)(16-a)

18 = 3a - 32 + 2a

50 = 5a

a = 10

right ans = 10

wrong ans = 6

Answered by Arun | 10 Aug, 2019, 04:01: PM

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