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)  

Prem has saved 680 during the first month, 730 in the second month and 780 in the third month. If he continues his savings in this sequence, what will be his savings in the 22th month


Answer:_______________




2)  

Aravindh has saved 680 during the first month, 740 in the second month and 800 in the third month. If he continues his savings in this sequence, what will be his savings in the 20th month


Answer:_______________




3)  

Pugal has saved 670 during the first month, 720 in the second month and 770 in the third month. If he continues his savings in this sequence, what will be his savings in the 16th month


Answer:_______________




4)  

Selvan has saved 550 during the first month, 630 in the second month and 710 in the third month. If he continues his savings in this sequence, what will be his savings in the 18th month


Answer:_______________




5)  

Kalai has saved 790 during the first month, 850 in the second month and 910 in the third month. If he continues his savings in this sequence, what will be his savings in the 20th month


Answer:_______________




6)  

Karna has saved 790 during the first month, 840 in the second month and 890 in the third month. If he continues his savings in this sequence, what will be his savings in the 23th month


Answer:_______________




7)  

Prem has saved 630 during the first month, 700 in the second month and 770 in the third month. If he continues his savings in this sequence, what will be his savings in the 19th month


Answer:_______________




8)  

Chidambaram has saved 610 during the first month, 660 in the second month and 710 in the third month. If he continues his savings in this sequence, what will be his savings in the 20th month


Answer:_______________




9)  

Raj has saved 590 during the first month, 630 in the second month and 670 in the third month. If he continues his savings in this sequence, what will be his savings in the 23th month


Answer:_______________




10)  

Kalai 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 24th month


Answer:_______________




 

1)  

Prem has saved 680 during the first month, 730 in the second month and 780 in the third month. If he continues his savings in this sequence, what will be his savings in the 22th month

Answer: 1730


SOLUTION 1 :

 Here 

a = 680,  d = 730 - 680 = 50

tn = a + (n-1)d

when   n = 22,

t22 = 680 + (22-1}50

t22 = 680 + 21x50

t22 = 680 + 1050 = 1730

Prem has saving in the 22th month is 1730

 



2)  

Aravindh has saved 680 during the first month, 740 in the second month and 800 in the third month. If he continues his savings in this sequence, what will be his savings in the 20th month

Answer: 1820


SOLUTION 1 :

 Here 

a = 680,  d = 740 - 680 = 60

tn = a + (n-1)d

when   n = 20,

t20 = 680 + (20-1}60

t20 = 680 + 19x60

t20 = 680 + 1140 = 1820

Aravindh has saving in the 20th month is 1820

 



3)  

Pugal has saved 670 during the first month, 720 in the second month and 770 in the third month. If he continues his savings in this sequence, what will be his savings in the 16th month

Answer: 1420


SOLUTION 1 :

 Here 

a = 670,  d = 720 - 670 = 50

tn = a + (n-1)d

when   n = 16,

t16 = 670 + (16-1}50

t16 = 670 + 15x50

t16 = 670 + 750 = 1420

Pugal has saving in the 16th month is 1420

 



4)  

Selvan has saved 550 during the first month, 630 in the second month and 710 in the third month. If he continues his savings in this sequence, what will be his savings in the 18th month

Answer: 1910


SOLUTION 1 :

 Here 

a = 550,  d = 630 - 550 = 80

tn = a + (n-1)d

when   n = 18,

t18 = 550 + (18-1}80

t18 = 550 + 17x80

t18 = 550 + 1360 = 1910

Selvan has saving in the 18th month is 1910

 



5)  

Kalai has saved 790 during the first month, 850 in the second month and 910 in the third month. If he continues his savings in this sequence, what will be his savings in the 20th month

Answer: 1930


SOLUTION 1 :

 Here 

a = 790,  d = 850 - 790 = 60

tn = a + (n-1)d

when   n = 20,

t20 = 790 + (20-1}60

t20 = 790 + 19x60

t20 = 790 + 1140 = 1930

Kalai has saving in the 20th month is 1930

 



6)  

Karna has saved 790 during the first month, 840 in the second month and 890 in the third month. If he continues his savings in this sequence, what will be his savings in the 23th month

Answer: 1890


SOLUTION 1 :

 Here 

a = 790,  d = 840 - 790 = 50

tn = a + (n-1)d

when   n = 23,

t23 = 790 + (23-1}50

t23 = 790 + 22x50

t23 = 790 + 1100 = 1890

Karna has saving in the 23th month is 1890

 



7)  

Prem has saved 630 during the first month, 700 in the second month and 770 in the third month. If he continues his savings in this sequence, what will be his savings in the 19th month

Answer: 1890


SOLUTION 1 :

 Here 

a = 630,  d = 700 - 630 = 70

tn = a + (n-1)d

when   n = 19,

t19 = 630 + (19-1}70

t19 = 630 + 18x70

t19 = 630 + 1260 = 1890

Prem has saving in the 19th month is 1890

 



8)  

Chidambaram has saved 610 during the first month, 660 in the second month and 710 in the third month. If he continues his savings in this sequence, what will be his savings in the 20th month

Answer: 1560


SOLUTION 1 :

 Here 

a = 610,  d = 660 - 610 = 50

tn = a + (n-1)d

when   n = 20,

t20 = 610 + (20-1}50

t20 = 610 + 19x50

t20 = 610 + 950 = 1560

Chidambaram has saving in the 20th month is 1560

 



9)  

Raj has saved 590 during the first month, 630 in the second month and 670 in the third month. If he continues his savings in this sequence, what will be his savings in the 23th month

Answer: 1470


SOLUTION 1 :

 Here 

a = 590,  d = 630 - 590 = 40

tn = a + (n-1)d

when   n = 23,

t23 = 590 + (23-1}40

t23 = 590 + 22x40

t23 = 590 + 880 = 1470

Raj has saving in the 23th month is 1470

 



10)  

Kalai 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 24th month

Answer: 1590


SOLUTION 1 :

 Here 

a = 670,  d = 710 - 670 = 40

tn = a + (n-1)d

when   n = 24,

t24 = 670 + (24-1}40

t24 = 670 + 23x40

t24 = 670 + 920 = 1590

Kalai has saving in the 24th month is 1590