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Ratio Class - 4 (Coin)
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Coin and denomination question shortcut trick

Bharat Gupta is teaching live on Unacademy Plus

Bharat Gupta
Engineer by degree Mathematician by Heart. Having 22 years of teaching experience. More than 20000 students selected.

U
Unacademy user
mam 3 question right answer is option no d. 2,3,5
Aditi Vinod Arya
9 months ago
yes told right but ticked the wrong one, sorry. Please hear it again I said the correct answer but pointed towards wrong option
the very first problem if coins solved by elimination method if option b i.e. 20 is correct then 4* 5+2*5+1*5 =35 which is not equal to the no of coins given in the question
Ashish Masarkar
9 months ago
no. of coins is not given , only the total value of coins is given i.e. 30 .
Joe Aswin
5 days ago
2*5+2*5×2×5=30
Joe Aswin
5 days ago
which is value
coins concept which you have learn not good and also the way you solve question is not understand.
Sir here we could have checked the divisibility of the options directly by 12 and in that case the only favourable option would be 72
PG
Priya Gupta
2 months ago
@Bharat Gupta
PG
Priya Gupta
2 months ago
sir plz explain
RR
sir in x technique how can we determine the answer from the options
Pandey Ji
4 months ago
always do the multiply of *x* in the sum of ration given for coins or notes.. & do that equal to amount given in qns.. U will get the value of x & all
sir 2.5*42=105 ,but u given ans 210.
  1. RATIO AND PROPORTION Class - 4(Coin)


  2. Coins Problem In a bag, there are 50 paisa coins, Rs 1 and Rs 2 coins. The number of 50 paisa coins, Rs 1 coins and Rs 2 coins in it are in the ratio 4:2:1. The total value of the coins is Rs 30. Find number of 50 paisa coins. a. 14 b. 20 c. 15 d. 12


  3. Coins Problem In a bag, there are 50 paisa coins, Rs 1 and Rs 2 coins. The number of 50 paisa coins, Rs 1 coins and Rs 2 coins in it are in the ratio 4:2:1. The total value of the coins is Rs 30. Find number of 50 paisa coins. a. 14 b. 20 c. 15 d. 12 MI L, 2 PSD Cain= 20


  4. Coins Problem In a bag, there are 50 paisa coins, Rs 1 and Rs 2 coins. The number of 50 paisa coins, Rs 1 coins and Rs 2 coins in it are in the ratio 4:2:1. The total value of the coins is Rs 30. Find number of 50 paisa coins. a. 14 b. 20 c. 15 d. 12 2. -2 2


  5. A bag contains Rs 100, Rs 50 and Rs 10 notes respectively. The ratio of number of Rs 100 and Rs 50 notes is 2:5 and the ratio of number of Rs 50 and Rs 10 notes is 4:9 respectively. If the bag contains total amount of Rs 1,12,500, then find the number of Rs 50 notes. a. 400 b. 2250 c. 1000 d. 1600


  6. A bag contains Rs 100, Rs 50 and Rs 10 notes respectively. The ratio of number of Rs 100 and Rs 50 notes is 2:5 and the ratio of number of Rs 50 and Rs 10 notes is 4:9 respectively. If the bag contains total amount of Rs 1,12,500, then find the number of Rs 50 notes. a. 400 b. 2250 c. 1000 d. 1600 2 9 4 B ' 12o 4S gM


  7. I have one rupee coins, fifty paisa coins and twenty five paisa coins. The number of coins are in the ratio 2.5:3:4. If the total amount with me is Rs 210, find the number of one-rupee coins. a. 90 b. 85 c. 100 d. 105


  8. I have one rupee coins, fifty paisa coins and twenty five paisa coins. The number of coins are in the ratio 2.5:3:4. If the total amount with me is Rs 210, find the number of one-rupee coins. a. 90 b. 85 c. 100 d. 105 6 2 5 1 all os


  9. I have one rupee coins, fifty paisa coins and twenty five paisa coins. The number of coins are in the ratio 2.5:3:4. If the total amount with me is Rs 210, find the number of one-rupee coins. a. 90 b. 85 c. 100 d. 105 2s No Ouo Cows valupa.sn 3z n-42


  10. A bag contains Rs 1, 20 paisa and 25 paisa coins. The ratio of Values of these coins is 16:4 3. If the bag contains total amount of Rs 80.5, then find the number of 25 paisa coin. a. 56 b. 72 . 42 d. 50