Question

geeta spends 19/4 hours in doing her homework. if she gives 3/2 hours to mathematics.find the time she gives to other subjects.​

Answer 1

Step-by-step explanation:

(i)

613+213=6×3+13+2×3+13=18+13+6+13=193+73

=19+73=263=24+23

=243+23=8+23=823

(ii)

114+312=1×4+14+3×2+12=54+72=54+7×22×2

=54+144=5+144=194=16+34

=164+34=4+34=434

Answer 2

Answer:

The time she gives for other subject is 13/4 = 3.25

Explain in step by step:

Time geeta spends doing her homework = 19/4

Time given to math = 3/2

∴let the time given to other subjects be x,

$\frac{3}{2} +x = \frac{19}{4}$

$x = \frac{19}{4} - \frac{3}{2}$

19 x 2 = 38

3 x 4   = 12

4 x 2   = 8

$x = \frac{38}{8} - \frac{12}{8}$

$x = \frac{38-12}{8}$

$x = \frac{26}{8} = \frac{13}{4}$

therefore x = 13/4

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