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CBSE Class 7 Answered

a pharmacist found that he received 7/5 times as many prescriptions for pain killers as he did for tranquilizers. If on a certain day he received 72 prescriptions, then find the prescriptions for types.
Asked by anshu24c | 09 Jul, 2022, 05:34: PM
answered-by-expert Expert Answer
let,
x = number of tranquilizers
then,
number of painkillers = 7x/5 
 
thus

x +7x/5 = 72

12x = 360

x = 30

tranquilizers = 30

pain killers = 42

Answered by Arun | 12 Jul, 2022, 10:36: AM
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