IBPS Government Jobs Exams Numerical Ability Simple & Compound Interest

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

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IBPS Other Question
A alone can do a work in 20 days. B is 25% more efficient than A. A and B started working and worked for 4 days, then C alone completed the remaining job in 22 days. In how many days C alone can complete the entire job? A) 45 B) 35 C) 40 D) 30 E) 48 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