DK MATHS
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1:31
Find the difference in the radii of two circles whose circumferences are 44cm and 28cm,respectively.
DK MATHS
17 views • 1 day ago
1:34
The cost price of milk has increased to ₹62 form ₹60. The milk man sold milk at 10% profit earlier.
DK MATHS
9 views • 2 days ago
1:50
Circle of radius 2cm is cutout from square piece of sheet of side 6cm. What is area of left over#mts
DK MATHS
19 views • 5 days ago
1:03
The circumference of a circle whose area is 81πr², is#circumference #rrbntpc #rrbgroupd #rrb_group_d
DK MATHS
10 views • 6 days ago
1:34
If 65% of 350 - ?% of 250 + 40% of 120 = 158, then find the value of ?#percentage_trick #ssc
DK MATHS
40 views • 6 days ago
2:24
If the roots of ax²+bx+c=0 are -1, -2 then a : b : c is #algebrarrbntpc #quadraticequation #ssccgl
DK MATHS
19 views • 7 days ago
1:48
△ABC is right-angled at A. AD is perpendicular to BC. If AB= 8 cm, BC= 17 cm and AC= 15 cm,#maths
DK MATHS
44 views • 7 days ago
2:16
Find the circumferences of the inner and the outer circles shown in the below figure.(π = 3.14)#exam
DK MATHS
10 views • 8 days ago
1:37
Find the area of the parallelogram ABCD if the area of the shaded triangle is 9 cm².#area51channel
DK MATHS
55 views • 8 days ago
1:04
Find the area of a sector (in cm²) subtending an angle of 60° at centre of a circle of radius 12 cm.
DK MATHS
37 views • 9 days ago
2:23
△ABC is isosceles with AB=AC=7.5cm and BC=9 cm. Height AD from A to BC, is 6 cm. Find area of △ ABC.
DK MATHS
79 views • 9 days ago
1:05
2sides of parallelogram are 6cm and 4cm height corresponding to base is3cm. Area of parallelogram is
DK MATHS
13 views • 10 days ago
1:17
Find the altitude of a triangle whose area is 42 cm² and base is 12 cm.#rrb_ntpc_group_d #áreas
DK MATHS
23 views • 10 days ago
0:58
The area of triangle#areaoftriangle #areas #triangle
DK MATHS
10 views • 10 days ago
1:31
If -3 is a zero of polynomial p(x) = (k-1)x² + kx + 1, then find the value of k is#polynomials #rrb
DK MATHS
33 views • 2 weeks ago
0:53
The LCM of two numbers is 182 and their HCF is 13. If one of the number is 26, find the other#hcf
DK MATHS
15 views • 2 weeks ago
2:16
If cos θ + sin θ = √2 cos θ, then cos θ - sin θ=?#trigonometry #ssc_cgl_math #ssc_chsl #ssc_cpo
DK MATHS
71 views • 2 weeks ago
1:43
If sin (A - B) = 1/2, cos (A + B) =1/2, A + Bis less than 90°, find A and B.#trigonometric #ssc_mts
DK MATHS
33 views • 3 weeks ago
0:46
Solve 1/2 + 1/3 + 1/6 #fraction #fractions #simplificationforbankpo #simplification_tricks
DK MATHS
13 views • 4 weeks ago
1:17
If the value of cosA =4/5 then the value of tan A is#ssc #ssc_gd #rrb_math
DK MATHS
18 views • 4 weeks ago
1:05
Prove the following trigonometric identity: (sin² A + 1/(1+tan² A) ) = 1 #trigonometri
DK MATHS
42 views • 4 weeks ago
1:19
A person took some money with some interest for 1 year but later he found that the rate of interest
DK MATHS
51 views • 4 weeks ago
1:13
Pipe A can fill the tank in 6 hours while pipe B can empty the tank in 12 hours. If both the pipes
DK MATHS
124 views • 1 month ago
1:13
A alone complete work in 30 days. A and B together complete same work in 20 days B, C takes 15 days
DK MATHS
35 views • 1 month ago
1:02
Ram's salary is Rs.32000, out of which 40% is paid on rent, from remaining amount he gave Rs.2000
DK MATHS
39 views • 1 month ago
1:02
Area of right angled triangle is 96cm². If ratio of base and height is 3 : 4, then find height.#mts
DK MATHS
52 views • 1 month ago
1:28
Two trains A and B, travelling in opposite directions, cross each other in 6 seconds.#rrb #cgl #mts
DK MATHS
162 views • 1 month ago
1:07
If the slope of the line joining (-8,11) and (2,y) is -4/3, then what is value of y?#rrb #rrbgroupd
DK MATHS
66 views • 1 month ago
1:12
The sum of two numbers is twice their difference. If their product is 48, the numbers will be#rrb
DK MATHS
43 views • 1 month ago
1:39
RatiobetweenlengthoftrainAandBis3:5.SpeedoftrainAis72km/h,trainBis54km/h.opposite.,findlengthofB.
DK MATHS
52 views • 1 month ago
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