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Answers
Answer:
Q.18..
..20 student in each class
2 unit = 20
1 unit = 10
∴ originally2×10+3×10+5×10
20 + 30 + 50 = 100
Q. 21
Total sum of amount bag contains 410
Ratio given 4:6:9
Where 4 is equal to rupees 5 and 6 is equal to rupees 2 and 9 is equal to rupees 1 multiplying rupees with the ratios we will get ratios as
20:12:9
Which should be equal to 410 let's multiply each ratio with x
Now we will get 20x:12x:9x
Which is equal to 410
Not 20 X + 12 x + 9 x is equal to 410 from this equation we will get the value of x as 10.
Substituting the value of x we will get
200+120+90=410
On dividing the values ratio to the coins ratio
200:120:90/5:12:9
We will get the answer
200 divided by 5 is equals to 40 which means there are 40 coins of rupees 5 similarly 120/2 is equals to 60 which means there are 60 coins of rupees 2 and 90 coins of rupees 1
22 questions answer is in the image
Answer:
Step-by-step explanation:
