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A total of 324 coins of 20 paise & 25 paise make a sum of ` 71. What is the number of 25 paise coin?
  • a)
    200
  • b)
    144
  • c)
    124
  • d)
    120
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
A total of 324 coins of 20 paise & 25 paise make a sum of ` 71. Wh...
To find the total value of the coins, we need to multiply the number of coins by the value of each coin.

324 coins * 20 paise = 6480 paise

To convert the paise to rupees, we divide by 100, since there are 100 paise in 1 rupee.

6480 paise / 100 = 64.80 rupees

Therefore, the total value of the 324 coins of 20 paise is 64.80 rupees.
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Community Answer
A total of 324 coins of 20 paise & 25 paise make a sum of ` 71. Wh...
Let the number of 25 paise coins be x.
No. of 20 paise coins = 324 – x
∴ 0.20 (324 – x) + 0.25 × x = 71 
⇒ 64.8 – 0.20x + 0.25x = 71 
⇒ 0.05x = 71 – 64.8 
⇒ 
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