hello everyone,
chapter: direct and inverse proportion
if 18 dolls cost rs 630.how many dolls can be bought for rs455??
chapter: direct and inverse proportion
if 18 dolls cost rs 630.how many dolls can be bought for rs455??
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18 dolls ---- 630/-
x. -----455/-
cross multiply
18 × 455 = 630× x
8190. =. 630x
x. = 8190 ÷630
x = 13.
therefore 13 dolls can be bought for rs 455
possible mark brainiest.plzz