Question

teacher can you plz see the pic and solve the question ​

Answer 1

Given,

Ratio of Rs 50 & Rs 20 notes is 3:5

Let number of Rs 50 notes be 3x

& number of Rs 20 notes be 5x

Given,

Total number of notes = 25

No. of Rs 50 notes + No. of Rs 20 notes + No. of Rs 10 notes = 25

3x + 5x + Number of Rs 10 notes = 25

8x + Number of Rs 10 notes = 25

Number of Rs 10 notes = 25 - 8x

Given,

Total amount she has = Rs 590

150x+100x + (250 - 80x) = 590

150x + 100x80x + 250 = 590

250x - 80x + 250 = 590

170 x + 250 590

170 x = 590-250

170 x = 340

x=340/170

x = 2

Thus,

Number of Rs 50 notes = 3x = 3 × 2 = 6

Number of Rs 20 notes = 5x = 5 x 2 = 10

Number of Rs 10 notes = 25 - 8x = 25 - 8(2) = 25 – 16 = 9