Question

a bag contains an equal number of 1 rupee and 50 praise coins. if the bag has 84 altogether. find the number of 50 praise coins​

Answer 1

Answer:

Step-1: Let’s have the following assumptions:

A = no. of 1 rupee coins

B = no. of 0.5 rupee coins (50 paisa)

C = no. of 0.25 rupee coins (25 paisa)

X = Value of 1 rupee coins

Y = Value of 0.5 rupee coins

Z = Value of 0.25 rupee coins

Step-2: Based on the problem, we know that the no. of 1 rupee, 0.5 rupee and 0.25 rupee coins are the same.

i.e. A = B =C

Step-3: We also know that the total value of the coins is 35 rupees

i.e. X+Y+Z = 35

Step-4: Based on the above two equations, we know that:

X = 1 (A)

Y = 0.5 (B)

Z = 0.25 (C)

Step-5: Now replace B and C with A as A=B=C from Step-2

X = 1 (A)

Y = 0.5 (A)

Z = 0.25 (A)

Step-6: Combining Step-3 & Step-5, we will get:

1 (A) + 0.5 (A) + 0.25 (A) = 35

1.75 (A) = 35

A = 20

The answer to this question is 20 coins each of 1 rupee, 0.5 rupee and 0.25 rupee.

Let’s verify our answer:

20 x 1 rupee coins = 20 x 1 = 20 rupees

20 x 50 paisa coins = 20 x 0.5 = 10 rupees

20 x 25 paisa coins = 20 x 0.25 = 5 rupees

Total = 35 rupees

Step-by-step explanation:

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Answer 2

total coins =84

there are equal number of 1 rupee and 50 paise coins

it means in that 84 coins half are 1 rupee and half are 50 paise

half of 84 is 42

by this we can tell there are 42 1rupee and 42 50paise

hence the answer is 42

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