20% of 50 marbles is 1 fifth of the marbles in the bag. so 50 marbles divided by 5 =10 blue marbles
He will have 13 blue marbles and 10 green marbles.
1/5 of 10 = 2.
60 marbles.. each point of the six pointed star has 10
10
24
20% of 50 marbles is 1 fifth of the marbles in the bag. so 50 marbles divided by 5 =10 blue marbles
ans is 10 marbles
He has 10 green marbles.
He will have 13 blue marbles and 10 green marbles.
1/5 of 10 = 2.
10 Green marbles, 13 Blue marbles.
a+b=23 b=a+3 a+b a+(a+3)=23 a+a=23-3 2a=20 a=10 green marbles=10 blue marbles =23-10 =13
60 marbles.. each point of the six pointed star has 10
if the balls are in the ratio of 7:10, then in every 7+10 = 17 of them 7 are white and 10 are black. With 136 marbles there are 136 ÷ 17 = 8 lots → there are 8 lots × 7 white/lot = 56 white.
Set up the problem as: y=number of yellow marbles & 4y=number of blue marbles. 40=y+4y or 40=5y or y=8. Therefore number of blue marbles is 4*8 = 32.
10*9*8=720