A. To increase 120 by 15%, we multiply 120 by 0.15 and add the result to 120.
120 + (120 * 0.15) = 138
B. To increase £1280 by 20%, we multiply 1280 by 0.20 and add the result to 1280.
1280 + (1280 * 0.20) = 1536
C. To increase Naria 890 in the ratio 3:2, we divide 890 by 2 to get the value of one part. Then multiply that value by 3 to get the increased value.
890 / 2 = 445
445 * 3 = 1335
Increase.
A. 120 by 15%=
B. £1280 by 20%=
C. Naria 890 in the ratio 3:2=
1 answer
1 answer