22. Ramkali required Rs 2,500 after 12 weeks to send her daughter to s

1.	22. Ramkali required Rs 2,500 after 12 weeks to send her daughter to school. She saved Rs100 in the first week and increased her weekly savings by Rs 20 every week. Findwhether she will be able to send her daughter to school after 12 weeks.What value is generated in the above situation?2 Colofory.
Answer» SOLUTION : First saving = 100 second saving =120 third saving = 140 clearly this is an A.P. series with a=100, d=20 we are to find the sum of 12 terms of this series so, sum =( n/2)(2a+(n-1)d) sum=(12/2)(2100+(12-1)20) sum=6(200+1120) sum=6(200+220) sum=6420 sum=2520 so she would be able to SAVE RS. 2520 in 12 months and therefore will be able to send her daughter to school Step-by-step EXPLANATION: MARK ME AS BRAINLIST AND FOLLOW ME

22. Ramkali required Rs 2,500 after 12 weeks to send her daughter to school. She saved Rs100 in the first week and increased her weekly savings by Rs 20 every week. Findwhether she will be able to send her daughter to school after 12 weeks.What value is generated in the above situation?2 Colofory.

Answer»

SOLUTION :

First saving = 100

second saving =120

third saving = 140

clearly this is an A.P. series with a=100,

d=20

we are to find the sum of 12 terms of this series

so,

sum =( n/2)*(2*a+(n-1)*d)

sum=(12/2)*(2*100+(12-1)*20)

sum=6*(200+11*20)

sum=6*(200+220)

sum=6*420

sum=2520

so she would be able to SAVE RS. 2520 in 12 months and therefore will be able to send her daughter to school

Step-by-step EXPLANATION:

MARK ME AS BRAINLIST AND FOLLOW ME

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SOLUTION :

so she would be able to SAVE RS. 2520 in 12 months and therefore will be able to send her daughter to school

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