how many numbers between 200 and 600 are divisible by 4,5, and 6?
how many numbers between 200 and 600 are divisible by 4,5, and 6?
Vikas TU , 15 Years ago
Grade 12th Pass
Magical Mathematics[Interesting Approach]> Arithmetic progressions...
2 Answersvikas askiitian expert
a smallest positive number which is divisible by 4,5,6 is lcm of these numbers which is 60 ,
now if any number is multiple of 60 then the condition is satisfied ...
nearest to 200 , 240 is the first number ....
now , a+(n-1)d = Tn
a=240 , d = 60 , Tn = 600
240+(n-1)60 = 600
n= 7
that means there are 7 numbers......
gowtham
240,300,360,420,480,540... are the numbers between 200 & 600 which is divisible by LCM (4,5,6), i.e 60.. so, there is 6 numbers between 200 & 600... answer is 6.
LIVE ONLINE CLASSES
Prepraring for the competition made easy just by live online class.
Full Live Access
Study Material
Live Doubts Solving
Daily Class Assignments
Other Related Questions on magical mathematics[interesting approach]
Given that (1+5x)⁴ = 1 + Px + Qx² + Rx³ +..... Find the values of P - 2Q + 3R
Given that (1+5x)⁴ = 1 + Px + Qx² + Rx³ +..... Find the values of P - 2Q + 3R
magical mathematics[interesting approach]
1 Answer Available
Last Activity: 3 Years ago
9 men and 15 boys working 10 hours a day can make 12 pillars in 42 days, in how many days will 12 men and 22 boys working 8 hours a day can make pillars 4 times the previous number?
9 men and 15 boys working 10 hours a day can make 12 pillars in 42 days, in how many days will 12 men and 22 boys working 8 hours a day can make pillars 4 times the previous number?
magical mathematics[interesting approach]
1 Answer Available
Last Activity: 3 Years ago
In the given figure, PQ is a tangent at a point C to a circle with centre O. If AB is a diameter, find angle PCA + angle BCQ?
In the given figure, PQ is a tangent at a point C to a circle with centre O. If AB is a diameter, find angle PCA + angle BCQ?
magical mathematics[interesting approach]
1 Answer Available
Last Activity: 3 Years ago
for any two sets A and B (A-B)U(B-A)U (A intersection B)
for any two sets A and B (A-B)U(B-A)U (A intersection B)
magical mathematics[interesting approach]
0 Answer Available
Last Activity: 3 Years ago
If someone has got 150 out of 200 marks in term 1 exam and 160 out of 200 marks in term 2 exam then what is the percentage in 30:70
If someone has got 150 out of 200 marks in term 1 exam and 160 out of 200 marks in term 2 exam then what is the percentage in 30:70
magical mathematics[interesting approach]
1 Answer Available
Last Activity: 4 Years ago