श्रेणी 40 ,42 ,60 ,72 ,55 ,48 ,58 ,68 ,52 का समान्तर माध्य है- | 12 | सांख्यिकी | MATHS | NAV...

In the figure, O is the centre of the circle of radius 29 cm, OP bot AB, OQ bot CD and AB is parallel to CD. If AB = 40 cm and CD = 42 cm, then the length of PQ is: दी गयी आकृति में, O वृत्त का केंद्र है जिसकी त्रिज्या 29 सेमी है , OP bot AB, OQ bot CD और AB, CD के समान्तर है। यदि AB= 40 सेमी और CD = 42 सेमी है, तो PQ की लंबाई है

The daily wages of 30 workers (in Rs.) in a factory is given below. 40, 45, 35, 70, 60, 52, 49, 46, 65, 56, 60, 35, 45, 40, 50, 56, 57, 48, 55, 52, 50, 70, 75, 80, 50, 45, 52, 65, 72, 50. How many workers are earning less than Rs. 50 per day ?

Two sections of class IX having 27 students in each section appeared for Mathematics olympiad. The marks obtained by them are shown below. 46, 31, 74, 68, 42, 54, 14, 61, 48, 37, 26, 8, 64, 57, 93, 72, 53, 59, 38, 16, 88, 56, 46, 66, 45, 61, 54, 27, 27, 44, 63, 58, 43, 81, 64, 36, 49, 50, 76, 38, 47, 77, 62, 53, 40, 71, 60, 45, 42, 34, 46, 40, 59, 42 One student is selected at random. Find the probability that selected student is having marks more than 49.

100 plants each were planted in 100 schools during Van Mahotsava. After one month, the number of plants that survived were recorded as: 95 67 28 32 65 65 69 33 98 96 76 42 32 38 42 40 40 69 95 92 75 83 76 83 85 62 37 65 63 42 89 65 73 81 49 52 64 76 83 92 93 68 52 79 81 83 59 82 75 82 86 90 44 62 31 36 38 42 39 83 87 56 58 23 35 76 83 85 30 68 69 83 86 43 45 39 83 75 66 83 92 75 89 66 91 27 88 89 93 42 53 69 90 55 66 49 52 83 34 36 Tabulate the given data in suitable groups using tally marks.

A can do 40% of a work in 12 days, whereas B can do 60% of the same work in 15 days. Both work together for 10 days. C completes the remaining work alone in 4 days. A, B and C together will complete 28% of the same work in : A किसी कार्य का 40% भाग 12 दिनों में कर सकता है जबकि B इसी कार्य का 60% भाग 15 दिनों में कर सकता है |दोनों 10 दिनों तक एक साथ कार्य करते हैं | C शेष कार्य 4 दिनों में पूरा करता है | A, B और C एक साथ इसी कार्य का 28% भाग कितने दिनों में पूरा करेंगे ?

A set of data is given. The mean of the set is 35 while the median is set as 60. Find the mode of the data. आंकड़ों का एक समुच्चय दिया गया है | इस समुच्चय का माध्य 55 है जबकि मध्यिका 60 है | इन आंकड़ों का बहुलक ज्ञात करें |

A earns Rs 40 per hour and works for 12 hours. B earns Rs 60 per hour and works for 10 hours. Find the ratio of their per day wages. A 40 रुपये प्रति घंटा कमाता है तथा 12 घंटे कार्य करता है |B 60 रुपये प्रति घंटा कमाता है तथा 10 घंटे कार्य करता है | उनकी प्रतिदिन मजदूरी का अनुपात ज्ञात करें |