Question

plsplsplspls helpme with this​

Answer 1

Answer:

c.rs6600

Step-by-step explanation:

Let the capital be Rs.x

Then,

(

3

x

×

100

7

×1)+(

4

x

×

100

8

×1)+(

12

5x

×

100

10

×1)=561

300

7x

+

50

x

+

24

x

=561

51x=561×600

x=6600

Answer 2

Step-by-step explanation:

Let C be capital.

The capital invested at 7% is 1/3C

Interest earned= 0.07% x 1/3C = 7/300C

The capital invested at 8% is 1/4 C

Interest earned= 0.08% x 1/4C = 1/50C

Remaining capital = C - (1/3C-1/4C) = 5/12C

Interest earned = 0.1% x 5/12C= 5/120C

Total interest earned= 7/300C + 1/50C + 5/120C

= (12.5C +6C +7C)/300 = 25.5C/300

25.5C/300=561

25.5C = 168300

C= 168300/25.5

= 6600