Qstnid -A-1-i-55% Of 160 + 24% Of 50 - 36% Of 150 (Ii) 9.3% Of 500 - 4.8% Of 250 - 2.5% Of 240 - 07: Percent And Percentage Class 8 Maths - Icse-viii-mathematics

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ICSE-VIII-Mathematics

07: Percent and Percentage Class 8 Maths

with Solutions - page 2

Qstn# A-1-i Prvs-Qstn Next-Qstn

#1-i
55% of 160 + 24% of 50 - 36% of 150 (ii) 9.3% of 500 - 4.8% of 250 - 2.5% of 240
Ans : 55% of 160 + 24% of 50 - 36% of 150
= (55 × 160)/100 + (24 × 50)/100 - (36 × 150)/100
= 11 × 8 + 12 - 18 × 3 = 88 + 12 - 54 = 46 (ii) 9.3 % of 500 - 4.8% of 250 - 2.5% of 240
= (9.3 × 500)/100 - (4.8 × 250)/100 - (2.5 × 240)/100
9.3 × 5 - 1.2 × 10 - 0.5 × 12
= 46.5 - 12 - 6
= 46. 5 - 8
= 28.5

#1-ii
9.3% of 500 - 4.8% of 250 - 2.5% of 240
Ans : 9.3 % of 500 - 4.8% of 250 - 2.5% of 240
= (9.3 × 500)/100 - (4.8 × 250)/100 - (2.5 × 240)/100
9.3 × 5 - 1.2 × 10 - 0.5 × 12
= 46.5 - 12 - 6
= 46. 5 - 8
= 28.5