IBPS Government Jobs Exams Numerical Ability Probability

A bag contains X red balls and 5 green balls. 2 balls are picked up randomly one after the other without replacement from the bag, then the probability of both balls being red is 3/7. What will be the value of X ? A)10 B)15 C)13 D)20 E)22

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IBPS Other Question

Rs. 7000 is divided unequally in two parts and invested in scheme A, which offers 10% p.a. compound interest which compounded annually and in scheme B, which offer 15% p.a. simple interest for 2 years and 3 years respectively. If the interest earned from scheme A is 84% of that earned from scheme B. Find the sum invested in scheme A. A) Rs. 4200 B) Rs. 2700 C) Rs. 3000 D) Rs. 4000 E) Rs. 4500 Two equations are given in variables X and Y. Solve these equations and determine relation between X and Y.
I) 2x² + 5x + 3 = 0
II) 2y² – 7y + 6 = 0

A) x > y B) x < y C) x ≤ y D) x ≥ y E) x = y or no relation can be established.