Question

18. A piggy bank contains 1 coins, 2 coins, 5 coins and 10 coins.
The number of 10 coins is four times the number of 5 coins, eight
times the number of 2 coins and sixteen times the number of 1 coins.
If all the money in the piggy bank adds upto 7 555, find the number of
10 coins in it.
[Hint: Let the number of 10 coins ber. Then, 10.x +
19. A rectangular plot is fe
[Hint: Let the number of 10 coins be x. Then, 10x + 5() + 2
Oct
+
= 5551​

Answer 1

Answer:

10 coin =3685.365854

Step-by-step explanation:

$10 = 40x \\ 5 = 20x \\ 2 = 16x \\ 1 = 6x \\ 40x + 20x + 16x + 6x = 82 x = 7555 \\ 26262$