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Let C1 and C2 be concentric circles such that the diameter of C1 is 4 cm longer than C2. If a chord of C1 has length 12 cms and is a tangent to C2, then the diameter of C1 is?

can this solved using the formula of relationship of secant and tangent

Do IIMs conduct a single interview for all the courses there, like a single interview for PGP, PGP FABM course in IIM A, or more than one interview

In parajumbles, I manage to select right pairs but unable to place them correctly, pls suggest how do I improve

Why most of the RCs given in the daily targets so long ? Usually the RCs asked in CAT exam consists of around 550 words, but since this week, I am seeing RCs comprising of 1000 words in daily targets.

not improving varc score , daily i solve 3-5 Rcs ...sometimes 3 questions correct and sometimes lesser than that..can anyone help me .

i'm watching concept videos and getting concept cleared then after I try to solve questions difficulty wise but I end up doing silly mistakes and blundering myself , Its August now and im still stuck in Arithmetic and my mocks and sectional are not improving. And now im in totally mental breakdown because i'm not able to solve PYQs and easy questions

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in quant i m forgetting question and not sometime not able to solve

The difference between the compound interest and simple interest earned on a particular sum in the second year alone is Rs. 123, and for the third year of investing is Rs. 369 if the interest rate is r%' per annum for both simple interest and compound interest, find the value of r?

Please explain this in simple method

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