if 3 men or 4 women earn rs480 in a day , how much will 7 men and 11 women earn in a day ?
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3 men=480
1 man=160
7 men=1120
4 women=480
1 woman=120
11 women=1320
so cost = 1320+1120
2440
1 man=160
7 men=1120
4 women=480
1 woman=120
11 women=1320
so cost = 1320+1120
2440
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