Question

A trust caring for handicapped children gets Rs.30,000 every month from its donors. The trust spends

half of the funds received for medical and educational care of the children and for that it charges 2% of the spent

amount for them, and deposits the balance amount in a private bank to get the money multiplied so that in future

the trust goes on functioning regularly.

Based on this information, answer the following questions –

i) The expenditure matrix is given by:

a) [15000 15000] b) [

15000

15000] c) [

1 15000

15000 1

] d) [

15000 0

0 15000]

ii) Let the rate of interest received from the bank be x%. Then, the interest matrix is given by:

a) [2% %] b) [

2%

%

] c) [

1 2%

% 1

] d) [

% 0

0 2%]

iii) Matrix of the total earning is:

a) [300 150] b) [

300

150

] c) [300 + 150x] d) [300 + 150]

iv) As the trust gets monthly earning of Rs.1800, the value of x is:

a) 6 b) 8 c) 10 d) 12

v) If the trust spends Rs.12,000 instead of Rs.15,000 for medical and educational care, the monthly earning

will be:

a) Rs.2240 b) Rs.2040 c) Rs.2400 d) Rs.2420​

Answer 1

Answer:

type

(a)

1 1 1

2²5²7

(d) 3 2 3

4 35

g

2 27

9 3

8

56