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what is the hcf of 5.2 ,13 ,39 , my ans is 1.3 but somewhere ans is given 2.6

IF AB+XY=1XP.WHERE A IS NOT EQUAL TO 0, AND EACH ALPHABET SIGNIFY DIFFERENT DIGIT FROM 0-9.THEN THE VALUE OF A is?

THE  MEAN OF 1,2,2^2.............2^31 LIES IN BETWEEN

In a school, there are 5 teachers. A and B teach Agriculture, Chemistry and Botany. D and A teach Management and Agriculture. E and B teach Psychology and Chinese. C teaches Chemistry and Botany.

What are the subjects​ each teacher teaches?

how to solve equation (x+t)=4(y-t)and(x-t)=3(y+t)

Please provide solution with logic.

Three types of coffee brands A, B and C costs Rs. 85/kg, 100/kg and 50/kg respectively. How many kg of each should be blended to produce 100 kg of mixture worth Rs.80/kg, given that the quantities of B and C are equal?

A person covers half his journey by train at 60kmph the remainder half  by bus at 30 kmph and the rest by cycle at 10 kmph.find his average speed during the entire journey

Sir I applied Ibps Po exams preciously but I am not remember my register number of my previous exams ....how I fill the form

There is free mock test of rrb ?