Question

a+4b=50 and a+49d=5 then a+24d= in A.P​

Answer 1

elimination method lga k a and d ki value nikal ke put krle bro

Answer 2

Answer:

by substitution method

a + 4d = 50. eq-(1)

a + 49d = 5. eq-(2)

substitute the eq (1)

a = 50 - 4d. eq-(3)

put the value of eq (3) in eq (2)

a + 49d = 5. eq-(2)

50 - 4d + 49d = 5. (a = 50 - 4d)

50 - 45d = 5

- 45d = - 45

d = -45/-45 = 1

put the value of d = 1 in eq (3).

a = 50 - 4d

a = 50 - 4(1)

a = 50 - 4

a = 46

now,

a + 24d = ?

46 + 24(1) = ? ( a = 46, d = 1)

46 + 24 = 70

so the answer is 70.

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