Fill in the blanks.
Abdul spends
16 of his money on 5 pencils and 2 beads.
Each bead costs five times as much as each pencil.
Let the price of 1 pencil be 1 u.
- Cost of 1 bead = _____ u
- Amount that Abdul has spent = _____ u
- Amount that Abdul has left = _____ u
- Amount that Abdul has at first = _____ u
(a)
Change X times into units.
Cost of 1 pencil = 1 u
Cost of 1 bead = 5 x 1 u = 5 u
(b)
Amount that Abdul has spent
= 5 x 1 u + 2 x 5 u
= 5 u + 10 u
= 15 u
(c)
Fraction of the money he has left
= 1 -
16 =
56 16 of his money = 15 u
56 of his money = 5 x 15 u = 75 u
Amount that Abdul has left = 75 u
(d)
Amount that Abdul has at first
= 15 u + 75 u
= 90 u
Answer(s): (a) 5; (b) 15; (c) 75; (d) 90