Question

2/7 of the flowers in a vase ars pink,3/7 of them are yellow and the rest are white. If the vase has 21 flowers,how many are white?

Answer 1

Answer:

let number of white flowers be x

2/7+3/7+x=21

by lcm we get

2+3/7+x=21

5/7+x=21

x=21-7/5

x=98/5

so, 98/5 of the flower vase are white flowers

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