Question

Mina had 8 marbles. Tina had twice as many marbles Zuha. When all of them put together their marbles, there were 29. Find the number of marbles Zuha and Tina had.​

Answer 1

Answer:

5 and 16

Step-by-step explanation:

No. of mina's marbles = 8

No. of tina's marbles = 2 x 8 = 16

let no. oof zuha's marbles = k

8 + 16 +k = 29

k = 29 - 8 - 16 = 5

Answer 2

Answer:

zuha = 7, tina = 14

Step-by-step explanation:

mina had marbles=8

let the Marbles zuha had =x

now the marbles tina had=2x

total marbles they had=29

now, the equation is,

8 + x + 2x =29

8 + 3x = 29

3x = 29 - 8

3x = 21

x = 21/3

x = 7

marbles zuha had = x = 7

marbles tina had = 2x = 2 × 7 = 14

total marbles tina and zuha had = 7 + 14

= 21

hope it helps u