4. Side QR of angle PQR is extended on both the sides so that exterior angles PQS and PRT are formed. If PQS = 100° and PRT = 130 , find the measure of each angle of PQR.
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Distance covered by the car using 1 litre of petrol = 16 km
By converting a mixed number into improper fractions,
2
3
4
litres = 11/4 litres
Distance covered by using
2
3
4
litres of petrol = 16 km × 11/4
= 44 km
Thus, 44 km distance will be covered by the car using
2
3
4
litres of petrol.
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