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)  

Balaji has saved 520 during the first month, 560 in the second month and 600 in the third month. If he continues his savings in this sequence, what will be his savings in the 21th month


Answer:_______________




2)  

Sriram has saved 560 during the first month, 620 in the second month and 680 in the third month. If he continues his savings in this sequence, what will be his savings in the 29th month


Answer:_______________




3)  

Aravindh has saved 580 during the first month, 650 in the second month and 720 in the third month. If he continues his savings in this sequence, what will be his savings in the 19th month


Answer:_______________




4)  

Karna has saved 690 during the first month, 730 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 23th month


Answer:_______________




5)  

Moorthi 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 24th month


Answer:_______________




6)  

Narayanan has saved 750 during the first month, 810 in the second month and 870 in the third month. If he continues his savings in this sequence, what will be his savings in the 28th month


Answer:_______________




7)  

Pugal has saved 730 during the first month, 780 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 16th month


Answer:_______________




8)  

Moorthi has saved 760 during the first month, 810 in the second month and 860 in the third month. If he continues his savings in this sequence, what will be his savings in the 23th month


Answer:_______________




9)  

Sriram has saved 720 during the first month, 760 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 30th month


Answer:_______________




10)  

Chidambaram has saved 520 during the first month, 560 in the second month and 600 in the third month. If he continues his savings in this sequence, what will be his savings in the 23th month


Answer:_______________




 

1)  

Balaji has saved 520 during the first month, 560 in the second month and 600 in the third month. If he continues his savings in this sequence, what will be his savings in the 21th month

Answer: 1320


SOLUTION 1 :

 Here 

a = 520,  d = 560 - 520 = 40

tn = a + (n-1)d

when   n = 21,

t21 = 520 + (21-1}40

t21 = 520 + 20x40

t21 = 520 + 800 = 1320

Balaji has saving in the 21th month is 1320

 



2)  

Sriram has saved 560 during the first month, 620 in the second month and 680 in the third month. If he continues his savings in this sequence, what will be his savings in the 29th month

Answer: 2240


SOLUTION 1 :

 Here 

a = 560,  d = 620 - 560 = 60

tn = a + (n-1)d

when   n = 29,

t29 = 560 + (29-1}60

t29 = 560 + 28x60

t29 = 560 + 1680 = 2240

Sriram has saving in the 29th month is 2240

 



3)  

Aravindh has saved 580 during the first month, 650 in the second month and 720 in the third month. If he continues his savings in this sequence, what will be his savings in the 19th month

Answer: 1840


SOLUTION 1 :

 Here 

a = 580,  d = 650 - 580 = 70

tn = a + (n-1)d

when   n = 19,

t19 = 580 + (19-1}70

t19 = 580 + 18x70

t19 = 580 + 1260 = 1840

Aravindh has saving in the 19th month is 1840

 



4)  

Karna has saved 690 during the first month, 730 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 23th month

Answer: 1570


SOLUTION 1 :

 Here 

a = 690,  d = 730 - 690 = 40

tn = a + (n-1)d

when   n = 23,

t23 = 690 + (23-1}40

t23 = 690 + 22x40

t23 = 690 + 880 = 1570

Karna has saving in the 23th month is 1570

 



5)  

Moorthi 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 24th month

Answer: 1540


SOLUTION 1 :

 Here 

a = 620,  d = 660 - 620 = 40

tn = a + (n-1)d

when   n = 24,

t24 = 620 + (24-1}40

t24 = 620 + 23x40

t24 = 620 + 920 = 1540

Moorthi has saving in the 24th month is 1540

 



6)  

Narayanan has saved 750 during the first month, 810 in the second month and 870 in the third month. If he continues his savings in this sequence, what will be his savings in the 28th month

Answer: 2370


SOLUTION 1 :

 Here 

a = 750,  d = 810 - 750 = 60

tn = a + (n-1)d

when   n = 28,

t28 = 750 + (28-1}60

t28 = 750 + 27x60

t28 = 750 + 1620 = 2370

Narayanan has saving in the 28th month is 2370

 



7)  

Pugal has saved 730 during the first month, 780 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 16th month

Answer: 1480


SOLUTION 1 :

 Here 

a = 730,  d = 780 - 730 = 50

tn = a + (n-1)d

when   n = 16,

t16 = 730 + (16-1}50

t16 = 730 + 15x50

t16 = 730 + 750 = 1480

Pugal has saving in the 16th month is 1480

 



8)  

Moorthi has saved 760 during the first month, 810 in the second month and 860 in the third month. If he continues his savings in this sequence, what will be his savings in the 23th month

Answer: 1860


SOLUTION 1 :

 Here 

a = 760,  d = 810 - 760 = 50

tn = a + (n-1)d

when   n = 23,

t23 = 760 + (23-1}50

t23 = 760 + 22x50

t23 = 760 + 1100 = 1860

Moorthi has saving in the 23th month is 1860

 



9)  

Sriram has saved 720 during the first month, 760 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 30th month

Answer: 1880


SOLUTION 1 :

 Here 

a = 720,  d = 760 - 720 = 40

tn = a + (n-1)d

when   n = 30,

t30 = 720 + (30-1}40

t30 = 720 + 29x40

t30 = 720 + 1160 = 1880

Sriram has saving in the 30th month is 1880

 



10)  

Chidambaram has saved 520 during the first month, 560 in the second month and 600 in the third month. If he continues his savings in this sequence, what will be his savings in the 23th month

Answer: 1400


SOLUTION 1 :

 Here 

a = 520,  d = 560 - 520 = 40

tn = a + (n-1)d

when   n = 23,

t23 = 520 + (23-1}40

t23 = 520 + 22x40

t23 = 520 + 880 = 1400

Chidambaram has saving in the 23th month is 1400