Question

Mary spent 42% of her money on a book and had P29 left. How much did she spend on the
book?







this is only grade 5​

Answer 1

Answer:21 PAISE

Step-by-step explanation:

Let the total money be X

we know;Mary used 42 percent of her money so cost of the book

= 42/100 x X= X -29

42X/100=X-29

42X=100(X-29)

42X=100X-2900

2900=100X-42X

2900=58X

X=2900/58

X=50

SO SHE HAS 50 PAISE

SO COST OF THE BOOK =42/100 x 50=21

SO THE COST OF THE BOOK IS 21 PAISE

THANK YOU