Aditya wants to buy a barbie doll with his pocket money to gift his younger sister Avantika on her birthday. There are total of 11 notes with denomination of Rs. 100, Rs. 50 and Rs. 20 in his piggy bank. How much money does he have, if Rs.50 notes are 2 more than Rs.20 notes and Rs.100 notes are 3 more than Rs.20 notes.
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Answer:
₹740
Step-by-step explanation:
let there be x 20 rupees notes
than no. of Rs.50 notes = x +2
and no. of Rs. 100 notes = x + 3
ATQ
x + x + 2 + x + 3 = 11
3x + 5 = 11
x = 2
Therefore he has 2 ₹20 notes , 4 ₹50 notes and 5 ₹ 100 notes
so total money he has = 2×20 + 4×50 + 5×100 =₹ 740
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