Answer:
For Raju, Cost of 10 pens = Rs. 150 \[\therefore \]Cost of 1 pen = Rs. \[\frac{150}{10}=\]Rs. 15 For Manish, Cost of 7 pens = Rs. 84 \[\therefore \] Cost of 1 pen = Rs. \[\frac{84}{7}=\] Rs. 12 Here, Rs. 12 < Rs. 15 Hence, Manish got the pens cheaper.
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