Scroll:Sequences and series >> word problems >> saq (4225)

Written Instructions:

For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..

For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.

Leave your answers in the simplest form or correct to two decimal places.


 

1)  

Chidambaram has saved 630 during the first month, 680 in the second month and 730 in the third month. If he continues his savings in this sequence, what will be his savings in the 27th month


Answer:_______________




2)  

Aravindh has saved 500 during the first month, 570 in the second month and 640 in the third month. If he continues his savings in this sequence, what will be his savings in the 16th month


Answer:_______________




3)  

Pugal has saved 580 during the first month, 620 in the second month and 660 in the third month. If he continues his savings in this sequence, what will be his savings in the 18th month


Answer:_______________




4)  

Prem has saved 670 during the first month, 710 in the second month and 750 in the third month. If he continues his savings in this sequence, what will be his savings in the 28th month


Answer:_______________




5)  

Moorthi has saved 500 during the first month, 570 in the second month and 640 in the third month. If he continues his savings in this sequence, what will be his savings in the 24th month


Answer:_______________




6)  

Narayanan has saved 610 during the first month, 680 in the second month and 750 in the third month. If he continues his savings in this sequence, what will be his savings in the 16th month


Answer:_______________




7)  

Barathan has saved 620 during the first month, 660 in the second month and 700 in the third month. If he continues his savings in this sequence, what will be his savings in the 18th month


Answer:_______________




8)  

Balaji has saved 760 during the first month, 800 in the second month and 840 in the third month. If he continues his savings in this sequence, what will be his savings in the 21th month


Answer:_______________




9)  

Kalai has saved 690 during the first month, 760 in the second month and 830 in the third month. If he continues his savings in this sequence, what will be his savings in the 20th month


Answer:_______________




10)  

Barathan has saved 590 during the first month, 670 in the second month and 750 in the third month. If he continues his savings in this sequence, what will be his savings in the 25th month


Answer:_______________




 

1)  

Chidambaram has saved 630 during the first month, 680 in the second month and 730 in the third month. If he continues his savings in this sequence, what will be his savings in the 27th month

Answer: 1930


SOLUTION 1 :

 Here 

a = 630,  d = 680 - 630 = 50

tn = a + (n-1)d

when   n = 27,

t27 = 630 + (27-1}50

t27 = 630 + 26x50

t27 = 630 + 1300 = 1930

Chidambaram has saving in the 27th month is 1930

 



2)  

Aravindh has saved 500 during the first month, 570 in the second month and 640 in the third month. If he continues his savings in this sequence, what will be his savings in the 16th month

Answer: 1550


SOLUTION 1 :

 Here 

a = 500,  d = 570 - 500 = 70

tn = a + (n-1)d

when   n = 16,

t16 = 500 + (16-1}70

t16 = 500 + 15x70

t16 = 500 + 1050 = 1550

Aravindh has saving in the 16th month is 1550

 



3)  

Pugal has saved 580 during the first month, 620 in the second month and 660 in the third month. If he continues his savings in this sequence, what will be his savings in the 18th month

Answer: 1260


SOLUTION 1 :

 Here 

a = 580,  d = 620 - 580 = 40

tn = a + (n-1)d

when   n = 18,

t18 = 580 + (18-1}40

t18 = 580 + 17x40

t18 = 580 + 680 = 1260

Pugal has saving in the 18th month is 1260

 



4)  

Prem has saved 670 during the first month, 710 in the second month and 750 in the third month. If he continues his savings in this sequence, what will be his savings in the 28th month

Answer: 1750


SOLUTION 1 :

 Here 

a = 670,  d = 710 - 670 = 40

tn = a + (n-1)d

when   n = 28,

t28 = 670 + (28-1}40

t28 = 670 + 27x40

t28 = 670 + 1080 = 1750

Prem has saving in the 28th month is 1750

 



5)  

Moorthi has saved 500 during the first month, 570 in the second month and 640 in the third month. If he continues his savings in this sequence, what will be his savings in the 24th month

Answer: 2110


SOLUTION 1 :

 Here 

a = 500,  d = 570 - 500 = 70

tn = a + (n-1)d

when   n = 24,

t24 = 500 + (24-1}70

t24 = 500 + 23x70

t24 = 500 + 1610 = 2110

Moorthi has saving in the 24th month is 2110

 



6)  

Narayanan has saved 610 during the first month, 680 in the second month and 750 in the third month. If he continues his savings in this sequence, what will be his savings in the 16th month

Answer: 1660


SOLUTION 1 :

 Here 

a = 610,  d = 680 - 610 = 70

tn = a + (n-1)d

when   n = 16,

t16 = 610 + (16-1}70

t16 = 610 + 15x70

t16 = 610 + 1050 = 1660

Narayanan has saving in the 16th month is 1660

 



7)  

Barathan has saved 620 during the first month, 660 in the second month and 700 in the third month. If he continues his savings in this sequence, what will be his savings in the 18th month

Answer: 1300


SOLUTION 1 :

 Here 

a = 620,  d = 660 - 620 = 40

tn = a + (n-1)d

when   n = 18,

t18 = 620 + (18-1}40

t18 = 620 + 17x40

t18 = 620 + 680 = 1300

Barathan has saving in the 18th month is 1300

 



8)  

Balaji has saved 760 during the first month, 800 in the second month and 840 in the third month. If he continues his savings in this sequence, what will be his savings in the 21th month

Answer: 1560


SOLUTION 1 :

 Here 

a = 760,  d = 800 - 760 = 40

tn = a + (n-1)d

when   n = 21,

t21 = 760 + (21-1}40

t21 = 760 + 20x40

t21 = 760 + 800 = 1560

Balaji has saving in the 21th month is 1560

 



9)  

Kalai has saved 690 during the first month, 760 in the second month and 830 in the third month. If he continues his savings in this sequence, what will be his savings in the 20th month

Answer: 2020


SOLUTION 1 :

 Here 

a = 690,  d = 760 - 690 = 70

tn = a + (n-1)d

when   n = 20,

t20 = 690 + (20-1}70

t20 = 690 + 19x70

t20 = 690 + 1330 = 2020

Kalai has saving in the 20th month is 2020

 



10)  

Barathan has saved 590 during the first month, 670 in the second month and 750 in the third month. If he continues his savings in this sequence, what will be his savings in the 25th month

Answer: 2510


SOLUTION 1 :

 Here 

a = 590,  d = 670 - 590 = 80

tn = a + (n-1)d

when   n = 25,

t25 = 590 + (25-1}80

t25 = 590 + 24x80

t25 = 590 + 1920 = 2510

Barathan has saving in the 25th month is 2510