Cost of 20 toys is rs. 140.how many toys can be bought for rs.770 ?
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₹140---------------20 toys
₹1-----------------20/140 toy
₹770-----------(20/140) *770 = (1/7)*770. =110. toys
₹1-----------------20/140 toy
₹770-----------(20/140) *770 = (1/7)*770. =110. toys
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