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प्रश्न
Find 77% of 580 + 34% of 390.
उत्तर
77% of 580 + 34% of 390
= `77/100 xx 580 + 34/100 xx 390`
= `77/5 xx 29 + 17/5 xx 39`
= `(2233 + 663)/5`
= `2896/5`
= 579.2
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