(4 MAY)ANSWERS OF TODAYS MATHS

ANSWERS FOR MATHS:

1.Answer: Option C

Explanation:

S.I. for 1 year = Rs. (854 - 815) = Rs. 39.

S.I. for 3 years = Rs.(39 x 3) = Rs. 117.

 Principal = Rs. (815 - 117) = Rs. 698.

2.Answer: Option A

Explanation:

Let the sum invested in Scheme A be Rs. x and that in Scheme B be Rs. (13900 - x).

Then,		x x 14 x 2		+		(13900 - x) x 11 x 2		= 3508
		100				100

 28x - 22x = 350800 - (13900 x 22)

 6x = 45000

 x = 7500.

So, sum invested in Scheme B = Rs. (13900 - 7500) = Rs. 6400.

3.Answer: Option D

Explanation:

Principal	= Rs. 100 x 4016.25 9 x 5
	= Rs. 401625 45
5.	= Rs. 8925. 4.Answer: Option B Explanation: Time = 100 x 81 years = 4 years. 450 x 4.5 Answer: Option B Explanation: Let rate = R% and time = R years. Then, 1200 x R x R = 432 100  12R2 = 432  R2 = 36  R = 6. 6.Answer: Option D Explanation: S.I. = Rs. (15500 - 12500) = Rs. 3000. Rate = 100 x 3000 % 7.Answer: Option B Explanation: Let the sum be Rs. 100. Then, S.I. for first 6 months = Rs. 100 x 10 x 1 = Rs. 5 100 x 2 S.I. for last 6 months = Rs. 105 x 10 x 1 = Rs. 5.25 100 x 2 So, amount at the end of 1 year = Rs. (100 + 5 + 5.25) = Rs. 110.25  Effective rate = (110.25 - 100) = 10.25% 8.Answer: Option D Explanation: Let the rate be R% p.a. Then, 5000 x R x 2 + 3000 x R x 4 = 2200. 100 100  100R + 120R = 2200  R = 2200 = 10. 220  Rate = 10%. 9.Answer: Option E Explanation: Let the original rate be R%. Then, new rate = (2R)%. Note: Here, original rate is for 1 year(s); the new rate is for only 4 months i.e.  year(s). 725 x R x 1 + 362.50 x 2R x 1 = 33.50 100 100 x 3  (2175 + 725) R = 33.50 x 100 x 3  (2175 + 725) R = 10050  (2900)R = 10050  R = 10050 = 3.46 2900  Original rate = 3.46% 10.Answer: Option C Explanation: Principal = Rs. 100 x 5400 = Rs. 15000. 12 x 3 If you are fast in addition/subtraction/division and multiplication. it means you are saving 10 to 15 sec per question. It results in saving 500 sec. in  overall paper. It means that you can solve 10 questions more than your competitor. so spend most time on practice of these basic operations. ou can make your own problems Or take these from any guide. Spend minimum one hour on it. Do not bother about speed, first try to achieve accuracy. All The Best. For written exam/ interview guidance , you may contact: ANIL AGGARWAL SIR ( P.O. 1982 BATCH) EX CHIEF MANGER ,PUNJAB NATIONAL BANK.  Mobile:                               +91 9811340788 E-mail ID:         anilakshita@yahoo.co.in Office: Flat #49, Trilok Apartments, Patparganj, I.P. Extension, Delhi-110092. Follow us at: Facebook Page: https://www.facebook.com/AnilAggarwalJobguidancehub  Website: http://bankinterview.in/