Question

Answer all question plz

Answer 1

48.) Fraction of tank holding water = 400/1600
1/4
Fraction of the tank which is empty = 1-1/4
4-1/4
3/4

49.) Length of log = 4 1/5m
21/5m
1/3 dipped in water=1/3×21/5
7/5 m dipped in water
Length of log outside the water = 21/5-7/5
=14/5 m
2 4/5 m

50.) Let the total number of chocolates be x.
2/3x given to brother
Remaining = x-2/3x
3-2/3x
x/3
Given to sister = 1/5×x/3
x/15
Remaining = x/3 -x/15
5x-x/15
4x/15
Remaining = 4 chocolates
4x /15=4
x=4×15/4
=15 chocolates

51.) Water required for making pasta = 7 1/2 cups
15 /2 cups
1 measuring cup holds = 5/4 cups
Times need to fill the cup = 15/2 ÷ 5/4
=15/2×4/5
=6 cups