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Start learning 50% faster. Sign in nowGiven series is 3, 6, 12, ... Here, a = 3, r = 2 Sum of n numbers = Sn= 765 As we know that, Sum of n terms of GP = Sn = a(rn – 1)/(r – 1); where r >1 Sn = 765 = 3 × (2n – 1) ⇒ 255 = (2n – 1) ⇒ 2n = 256 ⇒ 2n = 28 ⇒ n = 8
Simplify the following expression:
288 ÷ 12 x 6 + 56 x √4 - 676 ÷ 4
Ankit reaches his office 8 minutes late if he travels at 80% of his usual speed. If distance of his office is 80 km, then find his usual time taken (in ...
A question and two statements labeled (I), (II) are given. You have to decide which statement(s) is/are sufficient to answer the question.
Gowth...
If a sum invested at compound interest of 25% p.a., compounded annually becomes Rs. 18,750 after 2 years, then find the sum invested.
Determine the smallest 4-digit number that, when divided by 15, 24, and 30, leaves a remainder of 5 each time.
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
The ratio of the present ages of Asha and Lata is 5 : 6. If the difference between their ages is 6 years, then what will be Lata's age will be after 5 y...
A right circular cone has a radius of 9 cm and a height of 12 cm. Find the curved surface area of this cone.
