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Answers
Answer:
I hope this answer is correct
Answer:
₹ 91 1 / 2 OR ₹ 91.50
Step-by-step explanation:
Given,Rate of mangoes = ₹ 25 3 / 4 = ₹ (25 * 4 + 3) / 4 = ₹ 103 /4
Quantity of mangoes purchased = 2 1 / 2 kg = (2 * 2 + 1) / 2 = 5 / 2 kg
Rate of grapes = ₹ 15 1 / 2 = ₹ (15 * 2 + 1) / 2 = ₹ 31 / 2
Quantity of grapes purchased = 1 3 / 4 kg = (4 * 1 + 3) / 4 = 7 / 4 kg
[While converting a fraction from improper type, you have to multiply the denominator and the main number and then add it to the numerator.]
∵ Amount spent = Rate per kg * Quantity purchased
⇒ For mangoes = 103 / 4 * 5 / 2 = (103 * 5) / (4 * 2) = ₹ 515 / 8
⇒ For grapes = 31 / 2 * 7 / 4 = (31 * 7) / (2 * 4) = ₹ 217 / 8
[Simply multiply the numerators and denominators of the two fractions]
⇒ Total amount = Amt. for mangoes + Amt. for grapes
= 515 / 8 + 217 / 8
= (515 + 217) / 8
= 732 / 8
= ₹ 91 4 / 8
= ₹ 91 1 / 2 OR ₹ 91.50
[ Simply adding the numerators because of same denominators. If there were different then you have to take the LCM and then solve it. Also, take care that while writing mixed fraction, the fraction(except the main number) has to be in simplest form i.e. the HCF of its numerator and denominator should be 1]