Question

12.Arithmetic progression(2 + 4=6)or (1 + 1+4)
73. Which term of the AP: 3,8,13,18, is 78?
74.
Which term of the AP: 2,4,6;8... is 126?
75.
How many two digit numbers are divisible by 3?
76.
Find the 20th term from the last term of the AP: 3,8,13.........253.
77.
Find the sum of first 25 terms of the AP: 2,5,8,.
78. Find the sum of first 30 multiples of 5.
Find the three numbers in' AP whose sum is 15 and their product is 105.
79.
Find the four terms of the AP whose sum is 20 and product of the extremes is 16.
80.​

Answer 1

Step-by-step explanation:

73.     16.

74.     63.

75.     34.

76.     158.

77.      950.

78.      2325.

79.      2, 4, 6, 8.