£30 is divided between Sushil, Fiona & Pip so that Sushil gets twice as much as Fiona, and Fiona gets three times as much as Pip. How much does Sushil get?

£18

Step-by-step explanation:

Let Pip's share (p) =x

Fiona's share (f)=3p=3(x)

=3x

Sushil's share=2(f)

=2(3x)

=6x

x+3x+6x=£30

10x=£30

Divide both sides by 10

10x/10=£30/10

x=3

Pip get x= £3

Fiona get 3(x)=3(£3)=£9

Sushil get 6x=6(£3)=£18

answer: c, the green line

step-by-step explanation:

there is no black line, eliminate b.

simple interest implies periodic payments, but the red line shows no payments, eliminate d.

simple interest has equal payments. if paid say every day, the graph is about a straight line (actually a stairstep).

the yellow line is not straight, eliminate a.

check: the green line is straight, answer is c.

simple interest with positive interest rate gives a straight line sloping up to the right. green line:

g(t) = $100 + ($200-$100) ÷ (20 years) × (t years)

= $100 + (4%/year) × ($100)(t years)

incidentally, the yellow line curving upward represents continuously compounded interest

y = $100 × 2^(t years / (14 assuming the yellow line hits $200 at 14 years. 2^0 is 1, so y(0) = $100; 2^(14/14) is 2, so y(14) = $200.