The average consumption of petrol for a car for 7 months is 110 liters and for next 5 months it is 86 litres. The average monthly consumption is
The average consumption of petrol for a car for 7 months is 110 liters and for next 5 months it is 86 litres. The average monthly consumption is
ایک موٹر کار کی سات ماہ کے لیے پیٹرول کی اوسظ کھپت 110 لیٹر ہے اور اگلے پانچ مہینوں کے لئے یہ کھپت 86 لیٹر ہے اس گاڑی کی ماہانہ اوسط کھپت کیا ہوگی؟
Explanation
7 months Average is 110
7 months total = 110 x 7 = 770
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5 months Average is 86
5 months total = 86 x 5 = 430
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Total months = 5 + 7 = 12
Total Petrol consumption = 770 + 430 = 1200
Average = 1200/12
answer 100