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प्रश्न
What portion of a ‘saree’ can Rehana paint in 1 hour if it requires 5 hours to paint the whole saree? In `4 3/5` hours? in `3 1/2` hours?
बेरीज
उत्तर
In 5 h, Rehana paints = Whole saree
In 1 h, She paints = `1/5` part of saree
In `4 3/5` h, She paints = `1/5 xx 4 3/5`
= `1/5 xx ((5 xx 4) + 3)/5`
= `1/5 xx 23/5`
= `23/25` part of saree
In `3 1/2` h, She paints = `1/5 xx 3 1/2`
= `1/5 xx ((3 xx 2) + 1)/2`
= `1/5 xx 7/2`
= `7/10` part of saree
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