Revision test class VI Sainik School Entrance Exam 2018 - Maths

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Revision test class VI Sainik School Entrance Exam 2018 - Maths

1. What is the formula to find the Simple Interest
(b) Find the SI earned on Rs.1250 invested for 73 days at 7% rate of SI .

Solution:

Step 1: What is given?
Principal           : Rs. 1250
Rate of Interest : 7 % SI per annum
No of Days       : 73 Days

Step 2: Find the SI earned.

Step 3. Formula to be used.

SI= P x R x N / 100


Step 4. working: First convert Days into Years
i.e  73/ 365 = 1/ 5 Years

 1250 x 7 x 1/5 / 100 or
1250 x 7 x 1 / 20
or
125 x 7 / 2 =  875/ 2 = 437.50 Rs. SI answer


If a dealer sells apples at the rate of Rs. 75 per 1/2 dz. and his CP was Rs. 1200 for 10 Dz. in order to make 12% profit for how much should he sell one apple?




Defence Academy Coimbatore A leading coaching academy for Sainik, Military and RIMC Schools, NDA, IMA, AFCAT SSB, FSB Interview http://www.ssbcoaching.com call 094437 20076

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