Social Sciences, asked by shreya20042004, 7 months ago

(a) Nuclear Station
(b) Peasant Satyagrah
(c) Software Technology Park
(d) Indinal National Congress Sessions
plzzz telll me the correct answers
don't send spam answers
for class 10th





plzzz tell the map marking​

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Answers

Answered by Anonymous
1

Explanation:

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Answered by prajwalxoxo17
1

Answer:

Correct question :

I have a total of rupees 300 in coins of denominator rupees 1 rup 2 and rupees 5. The number of rupees 2 coins is 3 times the number of rupees 5 coins. The total number of coin is 160. How many coins of each denominatoion is with me?

Solution :

Let the number of Rs 5 coins be x.

Number of Rs 2 coins = 3 x Number of Rs 5 coins = 3x

Number of Re 1 coins = 160 - (Number of coins of Rs 5 and of Rs 2)

= 160 - (3x + x) 160 - 4x

Amount of Re 1 coins

= Rs [1 x (160 - 4x)]

= Rs (160 - 4x)

Amount of Rs 2 coins

= Rs (2 x 3x)

= Rs 6x

Amount of Rs 5 coins

= Rs (5 x X)

= Rs 5x

It is given that the total amount is Rs 300.

160 - 4x + 6x + 5x = 300

160 + 7x = 300

On transposing 160 to R.H.S, we obtain

7x = 300 - 160

7x = 140

On dividing both sides by 7, we obtain

7x = 140

x = 140/7

x = 20

Number of Re 1 coins

= 160 - 4x

= 160 - 4 x 20

= 160 - 80

= 80

Number of Rs 2 coins

= 3x

= 3 x 20

= 60

Number of Rs 5 coins

= x

= 20

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