MBA Entrance Exams / #CMAT

April 04, 2017 @ 01:15 PM

April 04, 2017 @ 01:15 PM

Important Problems on Progression

 Published : Friday, 18 July, 2014 01:06 PM
 
MBA aspirants who are appearing in CMAT First Test  being conducted from 25th September to 29th September 2014  may find following useful for practice:
 
Progressions: Finding Common Difference of an AP
 
Question 
Sum of first 25 terms of an AP is 525; sum of the next 25 terms is 725; what is the common difference?
 
1.8/25
2.4/25
3.6/25
4.1/5
 
Answer
 
Correct Choice is (1) and Correct Answer is 8/25
 
Explanatory Answer
 
The sum of the first 25 terms, S25 = 525
The sum of the next 25 terms, K25 = sum of next 25 terms = 725
a26 = a1 + 25d
a27 = a2 + 25d
K25 = a26 + a27 + ...... + a50
Or K25 = a1 + 25d + a2 + 25d + ...... + a25+ 25d
Or K25 = a1 + a2 + ...... + a25+ 25(25d)
Or K25 = S25 + 25(25d)
i.e., 725 = 525 + 25 x 25d
200 = 25 x 25d 
8 = 25d
d = 8/25
 
Stay informed, Stay ahead and stay inspired with MBA Rendezvous 

Crucial Dates, You Should not Miss

XAT 2018
Application Last Date 30th November 2017
IMI New Delhi
Application closes 4th December 2017
XIM Bhubaneshwar
Last Date 8th December 2017
SIBM Bengaluru
Apply for SNAP 2017 to be held on Dec 17 and apply for SIBM-Bengaluru through the SNAP Form
Institute of Rural Management Anand
IRMASAT will be conducted on February 4,2018, Apply Before December 31,2017
IBSAT 2017
Last date for IBSAT registration is December 12 , 2017
SSBF
Last date to register for SNAP is 24th November, 2017. Last date for SSBF is 2nd January 2018
SIBM Hyderabad
Apply for SNAP 2017 to be held on Dec 17 and apply for SIBM-Hyderabad through the SNAP Form
K J Somaiya Institute of Management Studies & Research, Mumbai
Last date for Application is 31st Jan, 2018
SDMIMD Mysore
Application for PGDM 2018-20 at SDMIMD is open till February 28, 2018
Institute of Management Technology
Application closes on November 24, 2017
MDI Murshidabad
Application for PGPM 2018-20 at MDI Murshidabad is open till November 24, 2017

Show More

Admission Open Now

Following Colleges are accepting applications.

INTERNATIONAL MANAGEMENT INSTITUTE

Admissions open for 2018-20

PGDM, PGDM (HRM), PGDM(B & FS), Executive PGDM

Apply Online