meera orders two kinds of pizzas regular and extra cheese cost 140 rupees and180 rupees of she orders 14 pizzas and spends rupees 2160 find the number of each pizza she orders
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8
EXPLANATION -
total pizzas =14
Let no of regular pizza be x
Thus no of extra cheese =14-x
Now we know that if we multiply cost of 1 pizza with its amount it will be equal to total amount spent
Thus, ATQ,
140*x+180(14-x)=2160
140x+2520-180x=2160
140x-180x=2160-2520
-40x=-360
X=360/40
Thus x =9
Thus he brought 9 regular pizza nd 5 extra cheese
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Answer is Regular : 9 and extra cheese pizza :5
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